2022

Chen, Feng ; Klein, Andreas (2022):
Polarization dependence of Schottky barrier heights at interfaces of ferroelectrics determined by photoelectron spectroscopy. (Verlagsversion)
In: Physical Review B, 86 (9), American Physical Society, ISSN 2469-9950, e-ISSN 2469-9969,
DOI: 10.26083/tuprints-00021177,
[Artikel]

Erhart, Paul ; Klein, Andreas ; Åberg, Daniel ; Sadigh, Babak (2022):
Efficacy of the DFT + U formalism for modeling hole polarons in perovskite oxides. (Verlagsversion)
In: Physical Review B, 90 (3), American Physical Society, ISSN 2469-9950, e-ISSN 2469-9969,
DOI: 10.26083/tuprints-00021157,
[Artikel]

Li, Shunyi ; Morasch, Jan ; Klein, Andreas ; Chirila, Christina ; Pintilie, Lucian ; Jia, Lichao ; Ellmer, Klaus ; Naderer, Michael ; Reichmann, Klaus ; Gröting, Melanie ; Albe, Karsten (2022):
Influence of orbital contributions to the valence band alignment of Bi2O3, Fe2O3, BiFeO3, and Bi0.5Na0.5TiO3. (Verlagsversion)
In: Physical Review B, 88 (4), American Physical Society, ISSN 2469-9950, e-ISSN 2469-9969,
DOI: 10.26083/tuprints-00021171,
[Artikel]

Schafranek, Robert ; Li, Shunyi ; Chen, Feng ; Wu, Wenbin ; Klein, Andreas (2022):
PbTiO₃/SrTiO₃ interface: Energy band alignment and its relation to the limits of Fermi level variation. (Verlagsversion)
In: Physical Review B, 84 (4), American Physical Society, ISSN 2469-9950, e-ISSN 2469-9969,
DOI: 10.26083/tuprints-00021173,
[Artikel]

2021

Chen, Feng ; Schafranek, Robert ; Wachau, André ; Zhukov, Sergey ; Glaum, Julia ; Granzow, Torsten ; Seggern, Heinz von ; Klein, Andreas (2021):
Barrier heights, polarization switching, and electrical fatigue in Pb(Zr,Ti)O₃ ceramics with different electrodes. (Verlagsversion)
In: Journal of Applied Physics, 108 (10), AIP Publishing, ISSN 0021-8979, e-ISSN 1077-3118,
DOI: 10.26083/tuprints-00019892,
[Artikel]

Zuo, Yinan ; Genenko, Yuri A. ; Klein, Andreas ; Stein, Peter ; Xu, Baixiang (2021):
Domain wall stability in ferroelectrics with space charges. (Verlagsversion)
In: Journal of Applied Physics, 115 (8), AIP Publishing, ISSN 0021-8979, e-ISSN 1089-7550,
DOI: 10.26083/tuprints-00019917,
[Artikel]

2017

Pforr, Florian ; Meyer, Kai-Christian ; Albe, Karsten ; Donner, Wolfgang (2017):
Relaxation of dynamically disordered tetragonal platelets in the relaxor ferroelectric 0.964Na1/2Bi1/2TiO3-0.036BaTiO3.
In: Physical Review B, 91 (184107), S. 1-11. APS Publishing, ISSN 2469-9950,
DOI: 10.1103/PhysRevB.96.184107,
[Artikel]

Grosezewicz, P.B ; Breitzke, H. ; Buntkowsky, G. (2017):
Compensating the asymmetric probe response in broad MAS NMR spectra of quadrupolar nuclei.
In: Solid State NMR, 84, S. 227-233. [Artikel]

Groszewicz, Pedro B. ; Breitzke, H. ; Jo, Wook ; Rödel, Jürgen ; Buntkowsky, G. (2017):
Local structure of the B-site in BNT-xBT investigated by 47,49Ti NMR: Effect of barium content.
In: Journal of Applied Physics, 121 (11), AIP Publishing, ISSN 00218979,
[Artikel]

2016

Groszewicz, Pedro B. ; Gröting, Melanie ; Breitzke, H. ; Jo, Wook ; Albe, Karsten ; Buntkowsky, G. ; Rödel, Jürgen (2016):
Reconciling Local Structure Disorder and the Relaxor State in (Bi1/2Na1/2)TiO3-BaTiO3.
In: Scientific reports, 6 (31739), nature, ISSN 2045-2322,
[Artikel]

2015

Zakhozheva, M. ; Schmitt, Ljubomira A. ; Acosta, Matias ; Guo, H. ; Jo, Wook ; Schierholz, Roland ; Kleebe, Hans-Joachim ; Tan, Xiaoli (2015):
Wide Compositional RangeIn SituElectric Field Investigations on Lead-FreeBa(Zr0.2Ti0.8)O3−x(Ba0.7Ca0.3)TiO3Piezoceramic.
In: Physical Review Applied, 3 (6), S. 064018. AMER PHYSICAL SOC, ISSN 2331-7019,
[Artikel]

Hausbrand, René ; Cherkashinin, Gennady ; Ehrenberg, Helmut ; Gröting, Melanie ; Albe, Karsten ; Hess, Christian ; Jaegermann, Wolfram (2015):
Fundamental degradation mechanisms of layered oxide Li-ion battery cathode materials: Methodology, insights and novel approaches.
In: Materials Science and Engineering: B, 192, S. 3-15. ISSN 09215107,
[Artikel]

Tselev, Alexander ; Klein, Andreas ; Gassmann, Jürgen ; Jesse, Stephen ; Li, Qian ; Kalinin, Sergei V. ; Balke, Nina (2015):
Quantitative Nanometer-Scale Mapping of Dielectric Tunability.
In: Advanced Materials Interfaces, 2 (15), S. 1500088. ISSN 21967350,
[Artikel]

2014

Groszewicz, Pedro B. ; Breitzke, Hergen ; Dittmer, Robert ; Sapper, Eva ; Jo, Wook ; Buntkowsky, Gerd ; Rödel, Jürgen (2014):
Nanoscale phase quantification in lead-free (Bi1/2Na1/2)TiO3-BaTiO3 relaxor ferroelectrics by means of 23Na NMR.
In: Physical Review B, 90 (22), S. 220104(1-5). ISSN 1098-0121,
[Artikel]

Kaspar, Jan ; Graczyk-Zajac, Magdalena ; Lauterbach, Stefan ; Kleebe, Hans-Joachim ; Riedel, Ralf (2014):
Silicon oxycarbide/nano-silicon composite anodes for Li-ion batteries: Considerable influence of nano-crystalline vs. nano-amorphous silicon embedment on the electrochemical properties.
In: Journal of Power Sources, 269, S. 164-172. Elsevier, ISSN 0378-7753,
DOI: 10.1016/j.jpowsour.2014.06.089,
[Artikel]

Zakhozheva, Marina ; Schmitt, Ljubomira A. ; Acosta, Matias ; Jo, Wook ; Rödel, Jürgen ; Kleebe, Hans-Joachim (2014):
In situ electric field induced domain evolution in Ba(Zr0.2Ti0.8)O3-0.3(Ba0.7Ca0.3)TiO3 ferroelectrics.
In: Applied Physics Letters, 105 (11), S. 112904-1-112904-4. AIP Publishing, ISSN 0003-6951,
DOI: 10.1063/1.4896048,
[Artikel]

Erhart, Paul ; Klein, Andreas ; Åberg, Daniel ; Sadigh, Babak (2014):
Efficacy of the DFT + U formalism for modeling hole polarons in perovskite oxides.
In: Physical Review B, 90 (3), S. 035204. APS Publications, ISSN 1098-0121,
[Artikel]

Kaspar, Jan ; Terzioglu, Caglar ; Ionescu, Emanuel ; Graczyk-Zajac, Magdalena ; Hapis, Stefania ; Kleebe, Hans-Joachim ; Riedel, Ralf (2014):
Stable SiOC/Sn Nanocomposite Anodes for Lithium-Ion Batteries with Outstanding Cycling Stability.
In: Advanced Functional Materials, 24 (26), S. 4097-4104. Wiley, ISSN 1616-301X,
DOI: 10.1002/adfm.201303828,
[Artikel]

Gross, Toni André ; Hess, Christian (2014):
Raman diagnostics of LiCoO2 electrodes for lithium-ion batteries.
In: Journal of Power Sources, 256, S. 220-225. ISSN 03787753,
[Artikel]

Li, Shunyi ; Chen, Feng ; Schafranek, Robert ; Bayer, Thorsten J. M. ; Rachut, Karsten ; Fuchs, Anne ; Siol, Sebastian ; Weidner, Mirko ; Hohmann, Mareike ; Pfeifer, Verena ; Morasch, Jan ; Ghinea, Cosmina ; Arveux, Emmanuel ; Günzler, Richard ; Gassmann, Jürgen ; Körber, Christoph ; Gassenbauer, Yvonne ; Säuberlich, Frank ; Rao, Gutlapalli Venkata ; Payan, Sandrine ; Maglione, Mario ; Chirila, Cristina ; Pintilie, Lucian ; Jia, Lichao ; Ellmer, Klaus ; Naderer, Michael ; Reichmann, Klaus ; Böttger, Ulrich ; Schmelzer, Sebastian ; Frunza, Raluca C. ; Uršič, Hana ; Malič, Barbara ; Wu, Wen-Bin ; Erhart, Paul ; Klein, Andreas (2014):
Intrinsic energy band alignment of functional oxides.
In: physica status solidi (RRL) - Rapid Research Letters, 8 (6), S. 571-576. ISSN 18626254,
[Artikel]

Zuo, Yinan ; Genenko, Yuri A. ; Klein, Andreas ; Stein, Peter ; Xu, Bai-Xiang (2014):
Domain wall stability in ferroelectrics with space charges.
In: Journal of Applied Physics, 115 (8), S. 084110. ISSN 0021-8979,
[Artikel]

Zhukov, Sergey ; Kungl, Hans ; Genenko, Yuri A. ; Seggern, Heinz von (2014):
Statistical electric field and switching time distributions in PZT 1Nb2Sr ceramics: Crystal- and microstructure effects.
In: Journal of Applied Physics, 115 (1), S. 014103(1-13). ISSN 00218979,
[Artikel]

Chen, Feng ; Wu, Wen-Bin ; Li, Shun-Yi ; Klein, Andreas (2014):
Energy band alignment at ferroelectric/electrode interface determined by photoelectron spectroscopy.
In: Chinese Physics B, 23 (1), S. 017702. ISSN 1674-1056,
[Artikel]

Schmitt, Ljubomira Ana ; Schrade, David ; Kungl, Hans ; Xu, Bai-Xiang ; Mueller, Ralf ; Hoffmann, Michael J. ; Kleebe, Hans-Joachim ; Fuess, Hartmut (2014):
Bimodal domain configuration and wedge formation in tetragonal Pb[Zr1−xTix]O3 ferroelectrics.
In: Computational Materials Science, 81, S. 123-132. Elsevier Science Publishing, ISSN 0927-0256,
DOI: 10.1016/j.commatsci.2013.07.020,
[Artikel]

Gross, Toni ; Hess, Christian (2014):
Spatially-Resolved In Situ Raman Analysis of LiCoO2 Electrodes.
In: ECS Transactions, In: ECS transactions, 63 (1), S. 137-144. [Artikel]

Xu, Bai-Xiang ; Seggern, Heinz von ; Zhukov, Sergey ; Gross, Dietmar (2014):
An internal-variable-based interface model for the charging process of ferroelectrets.
In: European Journal of Mechanics - A/Solids, 48, S. 97-111. Elsevier Science Publishing, [Artikel]

2013

Kızıltaş-Yavuz, Nilüfer ; Herklotz, Markus ; Hashem, Ahmed M. ; Abuzeid, Hanaa M. ; Schwarz, Björn ; Ehrenberg, Helmut ; Mauger, Alain ; Julien, Christian M. (2013):
Synthesis, structural, magnetic and electrochemical properties of LiNi1/3Mn1/3Co1/3O2 prepared by a sol–gel method using table sugar as chelating agent.
In: Electrochimica Acta, 113, S. 313-321. ISSN 00134686,
[Artikel]

Pfeifer, Verena ; Erhart, Paul ; Li, Shunyi ; Rachut, Karsten ; Morasch, Jan ; Brötz, Joachim ; Reckers, Philip ; Mayer, Thomas ; Rühle, Sven ; Zaban, Arie ; Mora Seró, Iván ; Bisquert, Juan ; Jaegermann, Wolfram ; Klein, Andreas (2013):
Energy Band Alignment between Anatase and Rutile TiO2.
In: The Journal of Physical Chemistry Letters, 4 (23), S. 4182-4187. ACS Publications, ISSN 1948-7185,
[Artikel]

Zhukov, Sergey ; Genenko, Yuri A. ; Acosta, Matias ; Humburg, Heide ; Jo, Wook ; Rödel, Jürgen ; Seggern, Heinz von (2013):
Polarization dynamics across the morphotropic phase boundary in Ba(Zr0.2Ti0.8)O3-x(Ba0.7Ca0.3)TiO3 ferroelectrics.
In: Applied Physics Letters, 103 (15), S. 152904(1-5). ISSN 00036951,
[Artikel]

Kling, Jens ; Jo, Wook ; Dittmer, Robert ; Schaab, Silke ; Kleebe, Hans-Joachim ; Zhang, S. (2013):
Temperature-Dependent Phase Transitions in the Lead-Free Piezoceramics (1 - x - y)(Bi1/2Na1/2)TiO3-xBaTiO3-y(K0.5Na0.5)NbO3Observed byin situTransmission Electron Microscopy and Dielectric Measurements.
In: Journal of the American Ceramic Society, 96 (10), S. 3312-3324. ISSN 00027820,
[Artikel]

Xu, Bai-Xiang ; Seggern, Heinz von ; Zhukov, Sergey ; Gross, Dietmar (2013):
Continuum modeling of charging process and piezoelectricity of ferroelectrets.
In: Journal of Applied Physics, 114 (9), S. 094103(1-12). ISSN 00218979,
[Artikel]

Genenko, Yuri A. ; Wehner, Jens ; Seggern, Heinz von (2013):
Self-consistent model of polarization switching kinetics in disordered ferroelectrics.
In: Journal of Applied Physics, 114 (8), S. 084101(1-6). AIP Publishing LLC, ISSN 00218979,
[Artikel]

Li, Shunyi ; Morasch, Jan ; Klein, Andreas ; Chirila, Christina ; Pintilie, Lucian ; Jia, Lichao ; Ellmer, Klaus ; Naderer, Michael ; Reichmann, Klaus ; Gröting, Melanie ; Albe, Karsten (2013):
Influence of orbital contributions to the valence band alignment of Bi2O3, Fe2O3, BiFeO3, and Bi0.5Na0.5TiO3.
In: Physical Review B, 88 (4), S. 045428. ISSN 1098-0121,
[Artikel]

Gross, Toni André ; Giebeler, Lars ; Hess, Christian (2013):
Novel in situ cell for Raman diagnostics of lithium-ion batteries.
In: Review of Scientific Instruments, 84 (7), S. 073109. ISSN 00346748,
[Artikel]

Bie, Xiaofei ; Du, Fei ; Wang, Yuhui ; Zhu, Kai ; Ehrenberg, Helmut ; Nikolowski, Kristian ; Wang, Chunzhong ; Chen, Gang ; Wei, Yingjin (2013):
Relationships between the crystal/interfacial properties and electrochemical performance of LiNi0.33Co0.33Mn0.33O2 in the voltage window of 2.5–4.6V.
In: Electrochimica Acta, 97, S. 357-363. ISSN 00134686,
[Artikel]

Drogowska, K. ; Flege, Stefan ; Rogalla, D. ; Becker, H.-W. ; Ionescu, Emanuel ; Kim-Ngan, N.-T. H. ; Balogh, A. G. (2013):
Hydrogen content analysis in hydrogen-charged PZT ferroelectric ceramics.
In: Solid State Ionics, 235, S. 32-35. Elsevier Science Publishing, ISSN 01672738,
[Artikel]

2012

Chen, Feng ; Klein, Andreas (2012):
Polarization dependence of Schottky barrier heights at interfaces of ferroelectrics determined by photoelectron spectroscopy.
In: Physical Review B, 86 (9), S. 094105. American Physical Society, ISSN 1098-0121,
[Artikel]

Glaum, Julia ; Genenko, Yuri A. ; Kungl, Hans ; Schmitt, Ljubomira A. ; Granzow, Torsten (2012):
De-aging of Fe-doped lead-zirconate-titanate ceramics by electric field cycling: 180°- vs. non-180° domain wall processes.
In: Journal of Applied Physics, 112 (3), S. 034103(1-9). ISSN 00218979,
[Artikel]

Schierholz, Roland ; Fuess, Hartmut (2012):
Ferroelectric domains in PZT ceramics at the morphotropic phase boundary. Can the splitting of reflections in SAED patterns be used for the distinction of different pseudo-cubic phases?
In: Journal of Applied Crystallography, 45 (4), S. 766-777. ISSN 0021-8898,
[Artikel]

Erdem, Emre ; Schaab, Silke ; Jo, Wook ; Ozarowski, Andrew ; Van Tol, Johan ; Eichel, Rüdiger-A. (2012):
High-Frequency EPR Analysis of MnO2-Doped [Bi0.5Na0.5]TiO3-BaTiO3Piezoelectric Ceramics – Manganese Oxidation States and Materials ‘Hardening’.
In: Ferroelectrics, 428 (1), S. 116-121. ISSN 0015-0193,
[Artikel]

Cherkashinin, Gennady ; Nikolowski, Kristian ; Ehrenberg, Helmut ; Jacke, Susanne ; Dimesso, Lucangelo ; Jaegermann, Wolfram (2012):
The stability of the SEI layer, surface composition and the oxidation state of transition metals at the electrolyte-cathode interface impacted by the electrochemical cycling: X-ray photoelectron spectroscopy investigation.
In: Physical Chemistry Chemical Physics, 14 (35), S. 12321-12331. ISSN 1463-9076,
[Artikel]

Genenko, Yuri A. ; Zhukov, Sergey ; Yampolskii, Sergey V. ; Schütrumpf, Jörg ; Dittmer, Robert ; Jo, Wook ; Kungl, Hans ; Hoffmann, Michael J. ; Seggern, Heinz von (2012):
Universal Polarization Switching Behavior of Disordered Ferroelectrics.
In: Advanced Functional Materials, 22 (11), S. 2058-2066. ISSN 1616301X,
[Artikel]

Schütrumpf, Jörg ; Zhukov, Sergey ; Genenko, Yuri A. ; Seggern, Heinz von (2012):
Polarization switching dynamics by inhomogeneous field mechanism in ferroelectric polymers.
In: Journal of Physics D: Applied Physics, 45 (16), S. 165301. IOP Publishing, ISSN 0022-3727,
[Artikel]

Klein, Andreas (2012):
Energy band alignment at interfaces of semiconducting oxides: A review of experimental determination using photoelectron spectroscopy and comparison with theoretical predictions by the electron affinity rule, charge neutrality levels, and the common anion rule.
In: Thin Solid Films, 520 (10), S. 3721-3726. ISSN 00406090,
[Artikel]

Hashem, A. M. ; Abuzeid, H. M. ; Mikhailova, D. ; Ehrenberg, H. ; Mauger, A. ; Julien, C. M. (2012):
Structural and electrochemical properties of α-MnO2 doped with cobalt.
In: Journal of Materials Science, 47 (5), S. 2479-2485. ISSN 0022-2461,
[Artikel]

2011

Hashem, Ahmed M. ; Abuzeid, Hanaa M. ; Narayanan, N. ; Ehrenberg, Helmut ; Julien, C. M. (2011):
Synthesis, structure, magnetic, electrical and electrochemical properties of Al, Cu and Mg doped MnO2.
In: Materials Chemistry and Physics, 130 (1-2), S. 33-38. ISSN 02540584,
[Artikel]

Hashem, Ahmed M. ; Abdel-Latif, A. M. ; Abuzeid, Hanaa M. ; Abbas, H. M. ; Ehrenberg, Helmut ; Farag, R. S. ; Mauger, A. ; Julien, C. M. (2011):
Improvement of the electrochemical performance of nanosized α-MnO2 used as cathode material for Li-batteries by Sn-doping.
In: Journal of Alloys and Compounds, 509 (40), S. 9669-9674. ISSN 09258388,
[Artikel]

Jo, Wook ; Schaab, Silke ; Sapper, Eva ; Schmitt, Ljubomira A. ; Kleebe, Hans-Joachim ; Bell, Andrew J. ; Rödel, Jürgen (2011):
On the phase identity and its thermal evolution of lead free (Bi1/2Na1/2)TiO3-6 mol% BaTiO3.
In: Journal of Applied Physics, 110 (7), S. 074106. AIP Publishing, ISSN 0021-8979,
DOI: 10.1063/1.3645054,
[Artikel]

Glaum, Julia ; Granzow, Torsten ; Schmitt, Ljubomira Ana ; Kleebe, Hans-Joachim ; Rödel, Jürgen (2011):
Temperature and driving field dependence of fatigue processes in PZT bulk ceramics.
In: Acta Materialia, 59 (15), S. 6083-6092. ISSN 1359-6454,
DOI: 10.1016/j.actamat.2011.06.017,
[Artikel]

Schierholz, Roland ; Fuess, Hartmut (2011):
Symmetry of domains in morphotropic PbZr_{1−x}Ti_{x}O_{3} ceramics.
In: Physical Review B, 84 (6), S. 064122(1-12). ISSN 1098-0121,
[Artikel]

Hinterstein, M. ; Rouquette, J. ; Haines, J. ; Papet, Ph. ; Knapp, M. ; Glaum, J. ; Fuess, H. (2011):
Structural Description of the Macroscopic Piezo- and Ferroelectric Properties of Lead Zirconate Titanate.
In: Physical Review Letters, 107 (7), ISSN 0031-9007,
[Artikel]

Mikhailova, Daria ; Bramnik, Natalia N. ; Bramnik, Kirill G. ; Reichel, P. ; Oswald, S. ; Senyshyn, A. ; Trots, D. M. ; Ehrenberg, Helmut (2011):
Layered LixMoO2Phases with Different Composition for Electrochemical Application: Structural Considerations.
In: Chemistry of Materials, 23 (15), S. 3429-3441. ISSN 0897-4756,
[Artikel]

Drahus, Michael D. ; Jakes, Peter ; Erdem, Emre ; Schaab, Silke ; Chen, Jun ; Ozerov, Mykhaylo ; Zvyagin, Sergei ; Eichel, Rüdiger-A. (2011):
Manganese-doped (1−x)BiScO_{3}–xPbTiO_{3} high-temperature ferroelectrics: Defect structure and mechanism of enhanced electric resistivity.
In: Physical Review B, 84 (6), S. 064113-1-064113-8. ISSN 1098-0121,
[Artikel]

Erdem, Emre ; Eichel, Rüdiger-A.
Lallart, Mickael (Hrsg.) (2011):
Impact of Defect Structure on ’Bulk’ and Nano-Scale Ferroelectrics.
In: smart materials, In: Ferroelectrics - Characterization and Modeling, S. 79-96, open access book, Intech open access publischer, ISBN 978-953-307-455-9,
[Buchkapitel]

Schafranek, Robert ; Li, Shunyi ; Chen, Feng ; Wu, Wenbin ; Klein, Andreas (2011):
PbTiO3/SrTiO3 interface: Energy band alignment and its relation to the limits of Fermi level variation.
In: Physical Review B, 84 (4), S. 045317. ISSN 1098-0121,
[Artikel]

Chen, Feng ; Schafranek, Robert ; Wu, Wenbin ; Klein, Andreas (2011):
Reduction-induced Fermi level pinning at the interfaces between Pb(Zr,Ti)O3 and Pt, Cu and Ag metal electrodes.
In: Journal of Physics D: Applied Physics, 44 (25), S. 255301. ISSN 0022-3727,
[Artikel]

Daniels, John E. ; Jo, Wook ; Rödel, Jürgen ; Rytz, Daniel ; Donner, Wolfgang (2011):
Structural origins of relaxor behavior in a 0.96(Bi[sub 1/2]Na[sub 1/2])TiO[sub 3]–0.04BaTiO[sub 3] single crystal under electric field.
In: Applied Physics Letters, 98 (25), S. 252904-1-252904-3. ISSN 00036951,
[Artikel]

Jakes, Peter ; Erdem, Emre ; Ozarowski, Andrew ; Van Tol, Johan ; Buckan, Ronny ; Mikhailova, Daria ; Ehrenberg, Helmut ; Eichel, Rüdiger-A. (2011):
Local coordination of Fe3+ in Li[Co0.98Fe0.02]O2 as cathode material for lithium ion batteries—multi-frequency EPR and Monte-Carlo Newman-superposition model analysis.
In: Physical Chemistry Chemical Physics, 13 (20), S. 9344-9352. ISSN 1463-9076,
[Artikel]

Suchanicz, J. ; Kim-Ngan, N.-T. H. ; Konieczny, K. ; Jankowska-Sumara, I. ; Balogh, Adam G. (2011):
Soft and hybrid-doped Pb(Zr,Ti)O3 ceramics under stress, electric field, and temperature loading.
In: Journal of Applied Physics, 109 (10), S. 104105. AIP, ISSN 00218979,
[Artikel]

Aksel, Elena ; Jakes, Peter ; Erdem, Emre ; Smyth, Donald M. ; Ozarowski, Andrew ; Van Tol, Johan ; Jones, Jacob L. ; Eichel, Rüdiger-A. (2011):
Processing of Manganese-Doped [Bi0.5Na0.5]TiO3 Ferroelectrics: Reduction and Oxidation Reactions During Calcination and Sintering.
In: Journal of the American Ceramic Society, 94 (5), S. 1363-1367. ISSN 00027820,
[Artikel]

Schmitt, Ljubomira A. ; Kling, Jens ; Hinterstein, Manuel ; Hoelzel, Markus ; Jo, Wook ; Kleebe, Hans-Joachim ; Fuess, Hartmut (2011):
Structural investigations on lead-free Bi1/2Na1/2TiO3-based piezoceramics.
In: Journal of Materials Science, 46 (12), S. 4368-4376. Springer, ISSN 0022-2461,
DOI: 10.1007/s10853-011-5427-6,
[Artikel]

Drahus, Michael D. ; Jakes, Peter ; Erdem, Emre ; Eichel, Rüdiger-A. (2011):
Defect structure of the mixed ionic–electronic conducting Sr[Ti,Fe]Ox solid-solution system — Change in iron oxidation states and defect complexation.
In: Solid State Ionics, 184 (1), S. 47-51. ISSN 01672738,
[Artikel]

Abuzeid, Hanaa M. ; Hashem, Ahmed M. ; Narayanan, N. ; Ehrenberg, Helmut ; Julien, C. M. (2011):
Nanosized silver-coated and doped manganese dioxide for rechargeable lithium batteries.
In: Solid State Ionics, 182 (1), S. 108-115. ISSN 01672738,
[Artikel]

Hinterstein, Manuel ; Hoelzel, Markus ; Kungl, Hans ; Hoffmann, Michael J. ; Ehrenberg, Helmut ; Fuess, Hartmut (2011):
In situ neutron diffraction study of electric field induced structural transitions in lanthanum doped lead zirconate titanate.
In: Zeitschrift für Kristallographie, 226 (2), S. 155-162. ISSN 0044-2968,
[Artikel]

Jakes, Peter ; Erdem, Emre ; Eichel, Rüdiger-A. ; Jin, Li ; Damjanovic, Dragan (2011):
Position of defects with respect to domain walls in Fe[sup 3+]-doped Pb[Zr[sub 0.52]Ti[sub 0.48]]O[sub 3] piezoelectric ceramics.
In: Applied Physics Letters, 98 (7), S. 072907-1. ISSN 00036951,
[Artikel]

Eichel, Rüdiger-A. (2011):
Structural and dynamic properties of oxygen vacancies in perovskite oxides—analysis of defect chemistry by modern multi-frequency and pulsed EPR techniques.
In: Physical Chemistry Chemical Physics, 13 (2), S. 368-384. ISSN 1463-9076,
[Artikel]

Jo, Wook ; Ollagnier, Jean-Baptiste ; Park, Jong-Lo ; Anton, Eva-Maria ; Kwon, O-Jong ; Park, Chan ; Seo, Hyun-Ho ; Lee, Jong-Sook ; Erdem, Emre ; Eichel, Rüdiger-A. ; Rödel, Jürgen (2011):
CuO as a sintering additive for (Bi1/2Na1/2)TiO3–BaTiO3–(K0.5Na0.5)NbO3 lead-free piezoceramics.
In: Journal of the European Ceramic Society, 31 (12), S. 2107-217. ISSN 09552219,
[Artikel]

2010

Chen, Feng ; Schafranek, Robert ; Wachau, André ; Zhukov, Sergey ; Glaum, Julia ; Granzow, Torsten ; Seggern, Heinz von ; Klein, Andreas (2010):
Barrier heights, polarization switching, and electrical fatigue in Pb(Zr,Ti)O3 ceramics with different electrodes.
In: Journal of Applied Physics, 108 (10), S. 104106-1. ISSN 00218979,
[Artikel]

Erdem, Emre ; Jakes, Peter ; Parashar, S. K. S. ; Kiraz, Kamil ; Somer, Mehmet ; Rüdiger, Andreas ; Eichel, Rüdiger-A. (2010):
Defect structure in aliovalently-doped and isovalently-substituted PbTiO3nano-powders.
In: Journal of Physics: Condensed Matter, 22 (34), S. 345901-1. ISSN 0953-8984,
[Artikel]

Kling, Jens ; Tan, Xiaoli ; Jo, Wook ; Kleebe, Hans-Joachim ; Fuess, Hartmut ; Rödel, Jürgen (2010):
In Situ Transmission Electron Microscopy of Electric Field-Triggered Reversible Domain Formation in Bi-Based Lead-Free Piezoceramics.
In: Journal of the American Ceramic Society, 93 (9), S. 2452-2455. Wiley, ISSN 0002-7820,
DOI: 10.1111/j.1551-2916.2010.03778.x,
[Artikel]

Arveux, E. ; Payan, S. ; Maglione, M. ; Klein, Andreas (2010):
Surface segregation in Nb-doped BaTiO3 films.
In: Applied Surface Science, 256 (21), S. 6228-6232. ISSN 01694332,
[Artikel]

Schmitt, Ljubomira Ana ; Hinterstein, Manuel ; Kleebe, Hans-Joachim ; Fuess, Hartmut (2010):
Comparative study of two lead-free piezoceramics using diffraction techniques.
In: Journal of applied crystallography, 43 (4), S. 805-810. Wiley-Blackwell - STM, ISSN 0021-8898,
DOI: 10.1107/S0021889810015980,
[Artikel]

Aksel, Elena ; Erdem, Emre ; Jakes, Peter ; Jones, Jacob L. ; Eichel, Rüdiger-A. (2010):
Defect structure and materials “hardening” in Fe2O3-doped [Bi0.5Na0.5]TiO3 ferroelectrics.
In: Applied Physics Letters, 97 (1), S. 012903-1. ISSN 00036951,
[Artikel]

Chen, F. ; Schafranek, R. ; Li, S. ; Wu, W. B. ; Klein, Andreas (2010):
Energy band alignment between Pb(Zr,Ti)O3 and high and low work function conducting oxides — from hole to electron injection.
In: Journal of Physics D: Applied Physics, 43 (29), S. 295301-1. ISSN 0022-3727,
[Artikel]

Hinterstein, Manuel ; Schönau, Kristin A. ; Kling, Jens ; Fuess, Hartmut ; Knapp, Michael ; Kungl, Hans ; Hoffmann, Michael J. (2010):
Influence of lanthanum doping on the morphotropic phase boundary of lead zirconate titanate.
In: Journal of Applied Physics, 108 (2), S. 024110-1. ISSN 00218979,
[Artikel]

Jo, Wook ; Erdem, Emre ; Eichel, Rüdiger-A. ; Glaum, Julia ; Granzow, Torsten ; Damjanovic, Dragan ; Rödel, Jürgen (2010):
Effect of Nb-donor and Fe-acceptor dopants in (Bi[sub 1/2]Na[sub 1/2])TiO[sub 3]–BaTiO[sub 3]–(K[sub 0.5]Na[sub 0.5])NbO[sub 3] lead-free piezoceramics.
In: Journal of Applied Physics, 108 (1), S. 014110-1. ISSN 00218979,
[Artikel]

Saadoune, Ismael ; Labrini, Mohamed ; Yahya, Mustapha ; Almaggoussi, Abdelmajid ; Ehrenberg, Helmut (2010):
LiNi0.1Mn0.1Co0.8O2 electrode material: Structural changes upon lithium electrochemical extraction.
In: Electrochimica Acta, 55 (18), S. 5180-5185. ISSN 00134686,
[Artikel]

Zhukov, Sergey ; Fedosov, Sergey ; Glaum, Julia ; Granzow, Torsten ; Genenko, Yuri A. ; Seggern, Heinz von (2010):
Effect of bipolar electric fatigue on polarization switching in lead-zirconate-titanate ceramics.
In: Journal of Applied Physics, 108 (1), S. 014105-1. ISSN 00218979,
[Artikel]

Zhukov, Sergey ; Genenko, Yuri A. ; Hirsch, Ofer ; Glaum, Julia ; Granzow, Torsten ; Seggern, Heinz von (2010):
Dynamics of polarization reversal in virgin and fatigued ferroelectric ceramics by inhomogeneous field mechanism.
In: Physical Review B, 82 (1), S. 014109-1. ISSN 1098-0121,
[Artikel]

Zhukov, Sergey ; Genenko, Yuri A. ; Seggern, Heinz von (2010):
Experimental and theoretical investigation on polarization reversal in unfatigued lead-zirconate-titanate ceramic.
In: Journal of Applied Physics, 108 (1), S. 014106-1-014106-6. ISSN 00218979,
[Artikel]

Kling, Jens ; Hayn, Silke ; Schmitt, Ljubomira A. ; Gröting, Melanie ; Kleebe, Hans-Joachim ; Albe, Karsten (2010):
A-site occupancy in the lead-free (Bi1/2Na1/2TiO3)0.94–(BaTiO3)0.06 piezoceramic: Combining first-principles study and TEM.
In: Journal of Applied Physics, 107 (11), S. 114113. American Institute of Physics, ISSN 0021-8979,
DOI: 10.1063/1.3437631,
[Artikel]

Gonzalo, E. C. ; Morán, E. ; Parada, C. ; Ehrenberg, Helmut (2010):
Microwave-assisted synthesis of LiCoO2 and LiCo1−xGaxO2: Structural features, magnetism and electrochemical characterization.
In: Materials Chemistry and Physics, 121 (3), S. 484-488. ISSN 02540584,
[Artikel]

Erdem, Emre ; Eichel, Rüdiger-A. ; Fetzer, C. S. ; Dezsi, I. ; Lauterbach, Stefan ; Kleebe, Hans-Joachim ; Balogh, Adam G. (2010):
Site of incorporation and solubility for Fe ions in acceptor-doped PZT ceramics.
In: Journal of Applied Physics, 107 (5), S. 054109. AIP, ISSN 0021-8979,
DOI: 10.1063/1.3327436,
[Artikel]

Hashem, Ahmed M. ; Abdel Ghany, Ashraf E. ; Nikolowski, Kristian ; Ehrenberg, Helmut (2010):
Effect of carbon coating process on the structure and electrochemical performance of LiNi0.5Mn0.5O2 used as cathode in Li-ion batteries.
In: Ionics, 16 (4), S. 305-310. ISSN 0947-7047,
[Artikel]

Hashem, Ahmed M. ; Abuzeid, Hanaa M. ; Nikolowski, Kristian ; Ehrenberg, Helmut (2010):
Table sugar as preparation and carbon coating reagent for facile synthesis and coating of rod-shaped MnO2.
In: Journal of Alloys and Compounds, 497 (1-2), S. 300-303. ISSN 09258388,
[Artikel]

Eichel, Rüdiger-A. ; Kungl, Hans (2010):
Recent developments and future perspectives of lead-free ferroelectrics.
In: Functional Materials Letters, 3 (1), S. 1-4. ISSN 1793-6047,
[Artikel]

Erdem, Emre ; Jakes, Peter ; Eichel, Rüdiger-A. ; Sinclair, Derek C. ; Pasha, Mahaboob ; Reaney, Ian M. (2010):
Formation of (Ti'Ti − V••O)• defect dipoles in BaTiO3 ceramics heat-treated under reduce oxygen partial-pressure.
In: Functional Materials Letters, 03 (01), S. 65-68. ISSN 1793-6047,
[Artikel]

Schmitt, Ljubomira A. ; Kleebe, Hans-Joachim (2010):
Single Grains Hosting Two Space Groups: A Transmission Electron Microscopy Study of a Lead-Free Ferroelectric.
In: Functional Materials Letters, 03 (01), S. 55-58. ISSN 1793-6047,
[Artikel]

Erdem, Emre ; Kiraz, Kamil ; Somer, Mehmet ; Eichel, Rüdiger-A. (2010):
Size effects in Fe3+-doped PbTiO3 nanocrystals—Formation and orientation of (Fe'Ti-V0°°)° defect-dipoles.
In: Journal of the European Ceramic Society, 30 (2), S. 289-293. ISSN 09552219,
[Artikel]

2009

Van Tol, J. ; Dinse, Klaus-Peter ; Kungl, Hans ; Hoffmann, Michael J. (2009):
Pulsed High-Frequency EPR Investigation of Gadolinium-Doped PbZrO3 and PbTiO3.
In: Applied Magnetic Resonance, 36 (2-4), S. 297-307. ISSN 0937-9347,
[Artikel]

Suchanicz, J. ; Kim-Ngan, N.-T. H. ; Konieczny, K. ; Jankowska-Sumara, I. ; Sitko, D. ; Goc-Jaglo, D. ; Balogh, Adam G. (2009):
Influence of combined external stress and electric field on electric properties of 0.5% Fe-doped lead zirconate titanate ceramics.
In: Journal of Applied Physics, 106 (9), S. 094109. American Institute of Physics, ISSN 00218979,
[Artikel]

Chen, Feng ; Schafranek, Robert ; Wu, Wenbin ; Klein, Andreas (2009):
Formation and modification of Schottky barriers at the PZT/Pt interface.
In: Journal of Physics D: Applied Physics, 42 (21), S. 215302-1-215302-5. ISSN 0022-3727,
[Artikel]

Eichel, Rüdiger-A. ; Erünal, Ebru ; Drahus, Michael D. ; Smyth, Donald M. ; Van Tol, Johan ; Acker, Jérôme ; Kungl, Hans ; Hoffmann, Michael J. (2009):
Local variations in defect polarization and covalent bonding in ferroelectric Cu2+-doped PZT and KNN functional ceramics at the morphotropic phase boundary.
In: Physical Chemistry Chemical Physics, 11 (39), S. 8698-8705. ISSN 1463-9076,
[Artikel]

Wei, Y. J. ; Nikolowski, Kristian ; Zhang, Shan-Tao ; Ehrenberg, Helmut ; Oswald, S. ; Chen, G. ; Wang, C. Z. ; Chen, H. (2009):
Electrochemical kinetics and cycling performance of nano Li[Li0.23Co0.3Mn0.47]O2 cathode material for lithium ion batteries.
In: Electrochemistry Communications, 11 (10), S. 2008-2011. ISSN 13882481,
[Artikel]

Silvestroni, Laura ; Kleebe, Hans-Joachim ; Kungl, Hans ; Lauterbach, Stefan ; Müller, Mathis M. ; Hoffmann, Michael J. (2009):
Lead Zirconate Titanate-Magnetoplumbite Composites: A First Step Toward Multiferroic Ceramics?
In: Journal of the American Ceramic Society, 92 (10), S. 2362-2367. Wiley, ISSN 0002-7820,
DOI: 10.1111/j.1551-2916.2009.03192.x,
[Artikel]

Eichel, Rüdiger-A. ; Drahus, Michael D. ; Jakes, Peter ; Erünal, Ebru ; Erdem, Emre ; Parashar, Sandeep Kumar ; Kungl, Hans ; Hoffmann, Michael J. (2009):
Defect structure and formation of defect complexes in Cu2+-modified metal oxides derived from a spin-Hamiltonian parameter analysis.
In: Molecular Physics, 107 (19), S. 1981. ISSN 0026-8976,
[Artikel]

Tan, Xiaoli ; Aulbach, Emil ; Jo, Wook ; Granzow, Torsten ; Kling, Jens ; Marsilius, Mie ; Kleebe, Hans-Joachim ; Rödel, Jürgen (2009):
Effect of uniaxial stress on ferroelectric behavior of (Bi1/2Na1/2)TiO3-based lead-free piezoelectric ceramics.
In: Journal of Applied Physics, 106 (4), S. 044107-1. ISSN 0021-8979,
DOI: 10.1063/1.3207827,
[Artikel]

Erdem, Emre ; Mass, Valentina ; Gembus, Armin ; Schulz, Armin ; Liebau-Kunzmann, Verena ; Fasel, Claudia ; Riedel, Ralf ; Eichel, Rüdiger-A. (2009):
Defect structure in lithium-doped polymer-derived SiCN ceramics characterized by Raman and electron paramagnetic resonance spectroscopy.
In: Physical Chemistry Chemical Physics, 11 (27), S. 5628-5633. Royal Society of Chemistry, ISSN 1463-9076,
[Artikel]

Schafranek, Robert ; Giere, André ; Balogh, Adam G. ; Enz, Thorsten ; Zheng, Yuliang ; Scheele, Patrick ; Jakoby, Rolf ; Klein, Andreas (2009):
Influence of sputter deposition parameters on the properties of tunable barium strontium titanate thin films for microwave applications.
In: Journal of the European Ceramic Society, 29 (8), S. 1433-1442. Elsevier Science Publishing Company, ISSN 09552219,
[Artikel]

Kleebe, Hans-Joachim ; Lauterbach, Stefan ; Silvestroni, Laura ; Kungl, Hans ; Hoffmann, Michael J. ; Erdem, Emre ; Eichel, Rüdiger-A. (2009):
Formation of magnetic grains in ferroelectric Pb[Zr0.6Ti0.4]O3 ceramics doped with Fe3+ above the solubility limit.
In: Applied Physics Letters, 94 (14), S. 142901. AIP Publishing, ISSN 0003-6951,
DOI: 10.1063/1.3103313,
[Artikel]

Oswald, S. ; Nikolowski, Kristian ; Ehrenberg, Helmut (2009):
Quasi in situ XPS investigations on intercalation mechanisms in Li-ion battery materials.
In: Analytical and Bioanalytical Chemistry, 393 (8), S. 1871-1877. ISSN 1618-2642,
[Artikel]

Laubach, Sonja ; Laubach, Stefan ; Schmidt, Peter C. ; Ensling, David ; Schmid, Stefan ; Jaegermann, Wolfram ; Thißen, Andreas ; Nikolowski, Kristian ; Ehrenberg, Helmut (2009):
Changes in the crystal and electronic structure of LiCoO2 and LiNiO2 upon Li intercalation and de-intercalation.
In: Physical Chemistry Chemical Physics, 11 (17), S. 3278-3289. ISSN 1463-9076,
[Artikel]

Schönau, Kristin A. ; Knapp, Michael ; Maglione, Mario ; Fuess, Hartmut (2009):
In situ investigation of the stability field and relaxation behavior of nanodomain structures in morphotropic Pb[Zr[sub 1−x]Ti[sub x]]O[sub 3] under variations in electric field and temperature.
In: Applied Physics Letters, 94 (12), S. 122902-1-122902-3. ISSN 00036951,
[Artikel]

Schneider, Jörg J. ; Hoffmann, Rudolf C. ; Engstler, Jörg ; Dilfer, Stefan ; Klyszcz, Andreas ; Erdem, Emre ; Jakes, Peter ; Eichel, Rüdiger-A. (2009):
Zinc oxide derived from single source precursor chemistry under chimie douce conditions: Formation pathway, defect chemistry and possible applications in thin film printing.
In: Journal of Materials Chemistry, 19 (10), S. 1449-1457. [Artikel]

Wei, Y. J. ; Ehrenberg, Helmut ; Kim, K. B. ; Park, C. B. ; Huang, Z. F. ; Baehtz, Carsten (2009):
Characterizations on the structural and electronic properties of thermal lithiated Li0.33MnO2.
In: Journal of Alloys and Compounds, 470 (1-2), S. 273-277. ISSN 09258388,
[Artikel]

2008

Gottschalk, S. ; Hahn, H. ; Flege, S. ; Balogh, A. G. (2008):
Oxygen vacancy kinetics in ferroelectric PbZr[sub 0.4]Ti[sub 0.6]O[sub 3].
In: Journal of Applied Physics, 104 (11), S. 114106. American Institute of Physics, ISSN 00218979,
[Artikel]

Müller, Ralf ; Schröder, Jörg ; Lupascu, Doru C. (2008):
Thermodynamic consistent modelling of defects and microstructures in ferroelectrics.
In: GAMM-Mitteilungen, 31 (2), S. 133-1508. ISSN 09367195,
[Artikel]

Suchanicz, J. ; Sitko, D. ; Kim-Ngan, N.-T. H. ; Balogh, Adam G. (2008):
Electric properties of soft PZT ceramics under combined electric and mechanic fields.
In: Journal of Applied Physics, 104 (9), S. 094106. ISSN 00218979,
[Artikel]

Zhang, Lixue ; Erdem, Emre ; Ren, Xiaobing ; Eichel, Rüdiger-A. (2008):
Reorientation of (Mn[sub Ti][sup ʺ]−V[sub O][sup ●●])[sup ×] defect dipoles in acceptor-modified BaTiO[sub 3] single crystals: An electron paramagnetic resonance study.
In: Applied Physics Letters, 93 (20), S. 202901-1-202901-3. ISSN 00036951,
[Artikel]

Hoffmann, M. J. ; Kungl, H. ; Theissmann, R. ; Wagner, S.
Heywang, W. ; Lubitz, K. ; Werding, W. (Hrsg.) (2008):
Microstructural Analysis Based on Microscopy and X-Ray Diffraction.
In: Springer Series in Materials Science, 114, In: Piezoelectricity. Evolution and Future of a Technology., S. 403-421, Springer Verlag Berlin Heidelberg, ISBN 978-3-540-68680-4,
[Buchkapitel]

Kounga, Alain B. ; Granzow, Torsten ; Aulbach, Emil ; Hinterstein, Manuel ; Rödel, Jürgen (2008):
High-temperature poling of ferroelectrics.
In: Journal of Applied Physics, 104 (2), S. 024116-1. ISSN 00218979,
[Artikel]

Schierholz, Roland ; Fuess, Hartmut ; Tsuda, Kenji ; Ogata, Yoishiro ; Terauchi, Masami ; Theissmann, Ralf (2008):
Crystal symmetry in single domains of PbZr0.54Ti0.46O3.
In: Physical Review B, 78 (2), S. 024118-1-024118-7. ISSN 1098-0121,
[Artikel]

Erdem, Emre ; Drahus, Michael D. ; Eichel, Rüdiger-A. ; Kungl, Hans ; Hoffmann, Michael J. ; Ozarowski, Andrew ; Van Tol, Johan ; Brunel, Louis Claude (2008):
DEFECT STRUCTURE IN "SOFT" (Gd,Fe)-CODOPED PZT 52.5/47.5 PIEZOELECTRIC CERAMIC.
In: Functional Materials Letters, 1 (1), S. 7. ISSN 1793-6047,
[Artikel]

Bhuvaneswari, M. S. ; Bramnik, N. N. ; Ensling, D. ; Ehrenberg, H. ; Jaegermann, W. (2008):
Synthesis and characterization of Carbon Nano Fiber/LiFePO4 composites for Li-ion batteries.
In: Journal of Power Sources, 180 (1), S. 553-560. ISSN 03787753,
[Artikel]

Erdem, Emre ; Eichel, Rüdiger-A. ; Kungl, Hans ; Hoffmann, Michael J. ; Ozarowski, Andrew ; Van Tol, Johan ; Brunei, L. C. (2008):
Characterization of (Fe_Zr,Ti-V_o ^ldrldr)^ldr defect dipoles in (La,Fe)-codoped PZT 52.5/47.5 piezoelectric ceramics by multifrequency electron paramagnetic resonance spectroscopy.
In: IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 55 (5), S. 1061-1068. ISSN 0885-3010,
[Artikel]

Schmitt, Ljubomira A. ; Theissmann, Ralf ; Kling, Jens ; Kungl, Hans ; Hoffmann, Michael J. ; Fuess, Hartmut (2008):
In situ hot-stage transmission electron microscopy of Pb(Zr0.52Ti0.48)O3.
In: Phase Transitions, 81 (4), S. 323-329. ISSN 0141-1594,
[Artikel]

Eichel, Rüdiger-A. ; Erhart, Paul ; Träskelin, Petra ; Albe, Karsten ; Kungl, Hans ; Hoffmann, Michael J. (2008):
Defect-Dipole Formation in Copper-Doped PbTiO3 Ferroelectrics.
In: Physical Review Letters, 100 (9), S. 095504-1. American Physical Society, ISSN 0031-9007,
[Artikel]

Eichel, Rüdiger-A. (2008):
Characterization of Defect Structure in Acceptor-Modified Piezoelectric Ceramics by Multifrequency and Multipulse Electron Paramagnetic Resonance Spectroscopy.
In: Journal of the American Ceramic Society, 91 (3), S. 691-701. ISSN 0002-7820,
[Artikel]

Li, X. ; Wei, Y. J. ; Ehrenberg, Helmut ; Du, F. ; Wang, C. Z. ; Chen, G. (2008):
Characterizations on the structural and electrochemical properties of LiNi1/3Mn1/3Co1/3O2 prepared by a wet-chemical process.
In: Solid State Ionics, 178 (39-40), S. 1969-1974. ISSN 01672738,
[Artikel]

Zhang, Shan-Tao ; Kounga, Alain Brice ; Aulbach, Emil ; Granzow, Torsten ; Jo, Wook ; Kleebe, Hans-Joachim ; Rödel, Jürgen (2008):
Lead-free piezoceramics with giant strain in the system Bi0.5Na0.5TiO3–BaTiO3–K0.5Na0.5NbO3. I. Structure and room temperature properties.
In: Journal of Applied Physics, 103 (3), S. 034107. ISSN 0021-8979,
DOI: 10.1063/1.2838472,
[Artikel]

Zhang, Shan-Tao ; Kounga, Alain Brice ; Aulbach, Emil ; Jo, Wook ; Granzow, Torsten ; Ehrenberg, Helmut ; Rödel, Jürgen (2008):
Lead-free piezoceramics with giant strain in the system Bi[sub 0.5]Na[sub 0.5]TiO[sub 3]–BaTiO[sub 3]–K[sub 0.5]Na[sub 0.5]NbO[sub 3]. II. Temperature dependent properties.
In: Journal of Applied Physics, 103 (3), S. 034108-1. ISSN 00218979,
[Artikel]

Erdem, Emre ; Drahus, Michael ; Eichel, Rüdiger-A. ; Ozarowski, Andrew ; Van Tol, Johan ; Brunel, Louis Claude (2008):
Microstructural Characterization of the Manganese Functional Center Site in PbTiO3Ferroelectrics — Multi-Frequency Electron Paramagnetic Resonance and Newman Superposition Model Analysis.
In: Ferroelectrics, 363 (1), S. 39-49. ISSN 0015-0193,
[Artikel]

2007

Erhart, Paul ; Eichel, Rüdiger-A. ; Träskelin, Petra ; Albe, Karsten (2007):
Association of oxygen vacancies with impurity metal ions in lead titanate.
In: Physical review / B, 76 (17), S. 174116-1-174116-12. American Physical Society, [Artikel]

Erdem, Emre ; Eichel, Rüdiger-A. ; Kungl, Hans ; Hoffmann, Michael J. ; Ozarowski, Andrew ; Van Tol, Hans ; Brunel, Louis Claude (2007):
Local symmetry-reduction in tetragonal (La,Fe)-codoped Pb[Zr0.4Ti0.6]O3 piezoelectric ceramics.
In: Physica Scripta, (T129), S. 12-16. Institute of Physics Publishing (IOP), ISSN 0031-8949,
DOI: 10.1088/0031-8949/2007/T129/003,
[Artikel]

Schönau, Kristin ; Knapp, Michael ; Kungl, Hans ; Hoffmann, Michael J. ; Fuess, Hartmut (2007):
In situ synchrotron diffraction investigation of morphotropic Pb[Zr1−xTix]O3 under an applied electric field.
In: Physical Review B, 76 (14), S. 144112-1-144112-12. ISSN 1098-0121,
[Artikel]

Eichel, Rüdiger-A. (2007):
Defect structure of oxide ferroelectrics—valence state, site of incorporation, mechanisms of charge compensation and internal bias fields.
In: Journal of Electroceramics, 19 (1), S. 11-23. ISSN 1385-3449,
[Artikel]

Puff, Werner ; Balke, Nina ; Kungl, Hans ; Hoffmann, Michael J. ; Balogh, Adam G. (2007):
Effect of Fe-doping and electrical load on the defect structure of Pb(ZrxTi1-x)O3ferroelectric ceramics.
In: physica status solidi (c), 4 (10), S. 3839-3842. ISSN 18626351,
[Artikel]

Zhang, Shan-Tao ; Kounga, Alain Brice ; Aulbach, Emil ; Ehrenberg, Helmut ; Rödel, Jürgen (2007):
Giant strain in lead-free piezoceramics Bi[sub 0.5]Na[sub 0.5]TiO[sub 3]–BaTiO[sub 3]–K[sub 0.5]Na[sub 0.5]NbO[sub 3] system.
In: Applied Physics Letters, 91 (11), S. 112906-1. ISSN 00036951,
[Artikel]

Theissmann, Ralf ; Schmitt, Ljubomira A. ; Kling, Jens ; Schierholz, Roland ; Schönau, Kristin A. ; Fuess, Hartmut ; Knapp, Michael ; Kungl, Hans ; Hoffmann, Michael J. (2007):
Nanodomains in morphotropic lead zirconate titanate ceramics: On the origin of the strong piezoelectric effect.
In: Journal of Applied Physics, 102 (2), S. 024111-1. ISSN 00218979,
[Artikel]

Schönau, Kristin A. ; Schmitt, Ljubomira A. ; Knapp, Michael ; Fuess, Hartmut ; Eichel, Rüdiger-A. ; Kungl, Hans ; Hoffmann, Michael J. (2007):
Nanodomain structure of Pb[Zr_{1−x}Ti_{x}]O_{3} at its morphotropic phase boundary: Investigations from local to average structure.
In: Physical Review B, 75 (18), S. 184117-1-184117-10. ISSN 1098-0121,
[Artikel]

Gumann, Sina ; Nestle, Nikolaus ; Liebau-Kunzmann, Verena ; Riedel, Ralf (2007):
Investigations of Li-containing SiCN(O) ceramics via 7Li MAS NMR.
In: Solid State Nuclear Magnetic Resonance, 31 (2), S. 82-90. Elsevier, ISSN 09262040,
[Artikel]

Kungl, Hans ; Theissmann, Ralf ; Knapp, Michael ; Baehtz, Carsten ; Fuess, Hartmut ; Wagner, Susanne ; Fett, Theo ; Hoffmann, Michael J. (2007):
Estimation of strain from piezoelectric effect and domain switching in morphotropic PZT by combined analysis of macroscopic strain measurements and synchrotron X-ray data.
In: Acta Materialia, 55 (6), S. 1849-1861. [Artikel]

Schmitt, Ljubomira A. ; Schönau, Kristin A. ; Theissmann, Ralf ; Fuess, Hartmut ; Kungl, Hans ; Hoffmann, Michael J. (2007):
Composition dependence of the domain configuration and size in Pb(Zr[sub 1−x]Ti[sub x])O[sub 3] ceramics.
In: Journal of Applied Physics, 101 (7), S. 074107-1. ISSN 00218979,
[Artikel]

Zuo, Ruzhong ; Granzow, Torsten ; Lupascu, Doru C. ; Rödel, Jürgen (2007):
PMN-PT Ceramics Prepared By Spark Plasma Sintering.
In: Journal of the American Ceramic Society, 90 (4), S. 1101-1106. ISSN 0002-7820,
[Artikel]

Schrade, David ; Müller, Ralf ; Gross, Dietmar ; Utschig, Thomas ; Shur, Vladimir Y. ; Lupascu, Doru C. (2007):
Interaction of domain walls with defects in ferroelectric materials.
In: Mechanics of materials, 39 (2), S. 161-174. ISSN 0167-6636,
DOI: 10.1016/j.mechmat.2006.04.002,
[Artikel]

Wei, Y. J. ; Ehrenberg, Helmut ; Bramnik, Natalia N. ; Nikolowski, Kristian ; Baehtz, Carsten ; Fuess, Hartmut (2007):
In situ synchrotron diffraction study of high temperature prepared orthorhombic LiMnO2.
In: Solid State Ionics, 178 (3-4), S. 253-257. ISSN 01672738,
[Artikel]

Eichel, Rüdiger-A. ; Böttcher, Rolf (2007):
Characterization of the high-spin Mn2+-functional centre in BaTiO3 by means of right-angle wiggling electron paramagnetic resonance spectroscopy.
In: Molecular Physics, 105 (15-16), S. 2195-2201. ISSN 0026-8976,
[Artikel]

2006

Meštrić, Hrvoje ; Eichel, Rüdiger-A. ; Dinse, Klaus-Peter ; Ozarowski, Andrew ; Van Tol, Johan ; Brunel, Louis ; Kungl, Hans ; Hoffmann, Michael ; Schönau, Kristin ; Knapp, Michael ; Fuess, Hartmut (2006):
Iron-oxygen vacancy defect association in polycrystalline iron-modified PbZrO3 antiferroelectrics: Multifrequency electron paramagnetic resonance and Newman superposition model analysis.
In: Physical Review B, 73 (18), S. 184105-1-184105-10. ISSN 1098-0121,
[Artikel]

Eichel, Rüdiger-A. ; Meštrić, Hrvoje ; Kungl, Hans ; Hoffmann, Michael J. (2006):
Multifrequency electron paramagnetic resonance analysis of polycrystalline gadolinium-doped PbTiO[sub 3]—Charge compensation and site of incorporation.
In: Applied Physics Letters, 88 (12), S. 122506-1. ISSN 00036951,
[Artikel]

Lupascu, Doru C. ; Genenko, Yuri A. ; Balke, Nina (2006):
Aging in Ferroelectrics.
In: Journal of the American Ceramic Society, 89 (1), S. 224-229. ISSN 0002-7820,
[Artikel]

Mueller, Ralf ; Gross, Dietmar ; Lupascu, Doru C. (2006):
Driving forces on domain walls in ferroelectric materials and interaction with defects.
In: Computational Materials Science, 35 (1), S. 42-52. ISSN 09270256,
DOI: 10.1016/j.commatsci.2005.02.014,
[Artikel]

2005

Eichel, Rüdiger-A. ; Meštrić, Hrvoje ; Dinse, Klaus-Peter ; Ozarowski, Andrew ; Van Tol, Johan ; Brunel, Louis Claude ; Kungl, Hans ; Hoffmann, Michael J. (2005):
High-field/high-frequency EPR of paramagnetic functional centers in Cu2+- and Fe3+-modified polycrystalline Pb[ZrxTi1−x]O3 ferroelectrics.
In: Magnetic Resonance in Chemistry, 43 (S1), S. 166-173. ISSN 0749-1581,
[Artikel]

Ehrenberg, Helmut ; Nikolowski, Kristian ; Bramnik, Natalia N. ; Baehtz, Carsten ; Buhrmester, Thorsten ; Gross, Toni André (2005):
Conditioning of Li(Ni,Co)O2 Cathode Materials for Rechargeable Batteries During the First Charge-Discharge Cycles.
In: Advanced Engineering Materials, 7 (10), S. 932-935. ISSN 1438-1656,
[Artikel]

Nikolowski, Kristian ; Baehtz, Carsten ; Bramnik, Natalia N. ; Ehrenberg, Helmut (2005):
A Swagelok-type in situ cell for battery investigations using synchrotron radiation.
In: Journal of Applied Crystallography, 38 (5), S. 851-853. ISSN 0021-8898,
[Artikel]

Nikolowski, Kristian M. ; Bramnik, Natalia N. ; Baehtz, Christian ; Ehrenberg, Helmut ; Fuess, Hartmut (2005):
In Situ XRD of Highly Charged and Discharged Li<em>x</em>Ni0.8Co0.2O2 (<em>x</em> close to 0).
In: Rechargeable Lithium and Lithium-Ion Batteries Editor(s): J. Weidner, 1 (26), S. 17-26. ECS Transactions, [Artikel]

Shur, Vladimir Ya. ; Nikolaeva, E. V. ; Shishkin, E. I. ; Baturin, Ivan S. ; Shur, Alevtina G. ; Utschig, Thomas ; Schlegel, Thorsten ; Lupascu, Doru C. (2005):
Deaging in Gd2(MoO4)3 by cyclic motion of a single planar domain wall.
In: Journal of Applied Physics, 98 (7), S. 074106. ISSN 00218979,
[Artikel]

Bramnik, Natalia N. ; Bramnik, Kirill G. ; Baehtz, Carsten ; Ehrenberg, Helmut (2005):
Study of the effect of different synthesis routes on Li extraction–insertion from LiCoPO4.
In: Journal of Power Sources, 145 (1), S. 74-81. ISSN 03787753,
[Artikel]

Bramnik, Natalia N. ; Bramnik, Kirill G. ; Nikolowski, Kristian ; Hinterstein, Manuel ; Baehtz, Carsten ; Ehrenberg, Helmut (2005):
Synchrotron Diffraction Study of Lithium Extraction from LiMn[sub 0.6]Fe[sub 0.4]PO[sub 4].
In: Electrochemical and Solid-State Letters, 8 (8), S. A379-A381. ISSN 10990062,
[Artikel]

Baehtz, Carsten ; Buhrmester, Thorsten ; Bramnik, Natalia N. ; Nikolowski, Kristian ; Ehrenberg, Helmut (2005):
Design and performance of an electrochemical in-situ cell for high resolution full-pattern X-ray powder diffraction.
In: Solid State Ionics, 176 (17-18), S. 1647-1652. ISSN 01672738,
[Artikel]

MacLaren, Ian ; Schmitt, Ljubomira A. ; Fuess, Hartmut ; Kungl, Hans ; Hoffmann, Michael J. (2005):
Experimental measurement of stress at a four-domain junction in lead zirconate titanate.
In: Journal of Applied Physics, 97 (9), S. 094102-1-094102-8. ISSN 00218979,
[Artikel]

Zhang, Yong ; Lupascu, Doru C. ; Aulbach, Emil ; Baturin, Ivan S. ; Bell, Andrew ; Rödel, Jürgen (2005):
Heterogeneity of fatigue in bulk lead zirconate titanate.
In: Acta Materialia, 53 (8), S. 2203-2213. ISSN 13596454,
[Artikel]

Gross, Toni André ; Buhrmester, Thorsten ; Bramnik, Kirill G. ; Bramnik, Natalia N. ; Nikolowski, Kristian ; Baehtz, Carsten ; Ehrenberg, Helmut ; Fuess, Hartmut (2005):
Structure–intercalation relationships in LiNiCoO.
In: Solid State Ionics, 176 (13-14), S. 1193-1199. ISSN 01672738,
[Artikel]

Meštrić, Hrvoje ; Eichel, Rüdiger-A. ; Koss, T. ; Dinse, Klaus-Peter ; Laubach, Sonja ; Laubach, Stefan ; Schmidt, Peter C. ; Schönau, Kristin A. ; Knapp, Michael ; Ehrenberg, Helmut (2005):
Iron-oxygen vacancy defect centers in PbTiO3 : Newman superposition model analysis and density functional calculations.
In: Physical Review B, 71 (13), S. 134109-1-134109-10. [Artikel]

Eichel, Rüdiger-A. ; Dinse, Klaus-Peter ; Kungl, Hans ; Hoffmann, Michael J. ; Ozarowski, Andrew ; Van Tol, Johan ; Brunel, Louis Claude (2005):
Exploring the morphotropic phase boundary in copper(II)-modified Pb[Zr0.54Ti0.46]O3 ferroelectrics.
In: Applied Physics A, 80 (1), S. 51-54. [Artikel]

Verdier, Cyril ; Morrison, Finlay D. ; Lupascu, Doru C. ; Scott, James F. (2005):
Fatigue studies in compensated bulk lead zirconate titanate.
In: Journal of Applied Physics, 97 (2), S. 024107-1. ISSN 00218979,
[Artikel]

Zhang, Yong ; Baturin, Ivan S. ; Aulbach, Emil ; Lupascu, Doru C. ; Kholkin, Andrei L. ; Shur, Vladimir Ya. ; Rödel, Jürgen (2005):
Evolution of bias field and offset piezoelectric coefficient in bulk lead zirconate titanate with fatigue.
In: Applied Physics Letters, 86 (1), S. 012910-1. ISSN 00036951,
[Artikel]

2004

Gottschalk, Sebastian ; Hahn, Horst ; Balogh, Adam G. ; Puff, Werner ; Kungl, Hans ; Hoffmann, Michael J. (2004):
A positron lifetime study of lanthanum and niobium doped Pb(Zr[sub 0.6]Ti[sub 0.4])O[sub 3].
In: Journal of Applied Physics, 96 (12), S. 7464-7470. American Institute of Physics, ISSN 00218979,
[Artikel]

Meštrić, Hrvoje ; Eichel, Rüdiger-A. ; Dinse, Klaus-Peter ; Ozarowski, Andrew ; Van Tol, Johan ; Brunel, Louis Claude (2004):
High-frequency electron paramagnetic resonance investigation of the Fe[sup 3+] impurity center in polycrystalline PbTiO[sub 3] in its ferroelectric phase.
In: Journal of Applied Physics, 96 (12), S. 7440-1. ISSN 00218979,
[Artikel]

Lupascu, Doru C. ; Granzow, Torsten ; Woike, Theo (2004):
Discontinuous domain wall motion in the relaxor ferroelectric Sr0.61Ba0.39Nb2O6.
In: Europhysics Letters (EPL), 68 (5), S. 733-739. ISSN 0295-5075,
[Artikel]

Puff, Werner ; Kungl, Hans ; Hoffmann, Michael J. ; Gottschalk, Sebastian ; Balogh, Adam G. (2004):
Vacancy-like defects in doped Pb(Zr60Ti40)O-3 observed by positron lifetime and coincident Doppler spectroscopy.
In: POSITRON ANNIHILATION, ICPA-13, PROCEEDINGS, 445 (6), S. 171-173. MATERIALS SCIENCE FORUM, ISSN 0255-5476,
[Artikel]

Bramnik, Natalia N. ; Bramnik, Kirill G. ; Buhrmester, Thorsten ; Baehtz, Carsten ; Ehrenberg, Helmut ; Fuess, Hartmut (2004):
Electrochemical and structural study of LiCoPO4-based electrodes.
In: Journal of Solid State Electrochemistry, 8 (8), S. 558-564. ISSN 1432-8488,
[Artikel]

Eichel, Rüdiger-A. ; Kungl, Hans ; Hoffmann, Michael J. (2004):
Determination of functional center local environment in copper-modified Pb[Zr[sub 0.54]Ti[sub 0.46]]O[sub 3] ceramics.
In: Journal of Applied Physics, 95 (12), S. 8092-1. ISSN 00218979,
[Artikel]

Leyzerovich, N. N. ; Bramnik, Kirill G. ; Buhrmester, Thorsten ; Ehrenberg, Helmut ; Fuess, Hartmut (2004):
Electrochemical intercalation of lithium in ternary metal molybdates MMoO4 (M: Cu, Zn, Ni and Fe).
In: Journal of Power Sources, 127 (1-2), S. 76-84. ISSN 03787753,
[Artikel]

Lupascu, Doru C. ; Vedesov, Sergej ; Verdier, Cyril ; Rödel, Jürgen ; Seggern, Heinz von (2004):
Stretched exponential relaxation in perovskite ferroelectrics after cyclic loading.
In: Journal of Applied Physics, 95 (3), S. 1386-1390. ISSN 00218979,
[Artikel]

2003

Verdier, Cyril ; Lupascu, Doru C. ; Rödel, Jürgen (2003):
Unipolar fatigue of ferroelectric lead–zirconate–titanate.
In: Journal of the European Ceramic Society, 23 (9), S. 1409-1415. ISSN 09552219,
[Artikel]

Lupascu, Doru C. ; Aulbach, Emil ; Rödel, Jürgen (2003):
Mixed electromechanical fatigue in lead zirconate titanate.
In: Journal of Applied Physics, 93 (9), S. 5551-5556. ISSN 00218979,
[Artikel]