Englisch

Zhukov, S. ; Glaum, Julia ; Kungl, Hans ; Sapper, Eva ; Dittmer, Robert ; Genenko, Yuri A. ; Seggern, Heinz von (2016)
Fatigue effect on polarization switching dynamics in polycrystalline bulk ferroelectrics.
In: Journal of Applied Physics, 120 (6)
doi: 10.1063/1.4960691
Artikel, Bibliographie

Liu, Na ; Dittmer, Robert ; Stark, Robert W. ; Dietz, Christian (2015)
Visualization of polar nanoregions in lead-free relaxors via piezoresponse force microscopy in torsional dual AC resonance tracking mode.
In: Nanoscale, 7 (27)
doi: 10.1039/c5nr01326g
Artikel, Bibliographie

Rödel, Jürgen ; Webber, Kyle G. ; Dittmer, Robert ; Jo, Wook ; Kimura, Masahiko ; Damjanovic, Dragan (2015)
Transferring lead-free piezoelectric ceramics into application.
In: Journal of the European Ceramic Society, 35 (6)
doi: 10.1016/j.jeurceramsoc.2014.12.013
Artikel, Bibliographie

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)
doi: 10.1103/PhysRevB.90.220104
Artikel, Bibliographie

Gobeljic, Danka ; Dittmer, Robert ; Rödel, Jürgen ; Shvartsman, Vladimir V. ; Lupascu, Doru C. ; Zhang, S. (2014)
Macroscopic and Nanoscopic Polarization Relaxation Kinetics in Lead-Free Relaxors Bi1/2Na1/2TiO3-Bi1/2K1/2TiO3-BiZn1/2Ti1/2O3.
In: Journal of the American Ceramic Society, 97 (12)
doi: 10.1111/jace.13227
Artikel, Bibliographie

Petzelt, Jan ; Nuzhnyy, Dmitry ; Bovtun, Viktor ; Paściak, Marek ; Kamba, Stanislav ; Dittmer, Robert ; Svirskas, Šarunas ; Banys, Juras ; Rödel, Jürgen (2014)
Peculiar Bi-ion dynamics in Na1/2Bi1/2TiO3from terahertz and microwave dielectric spectroscopy.
In: Phase Transitions, 87 (10-11)
doi: 10.1080/01411594.2014.953517
Artikel, Bibliographie

Sapper, Eva ; Dittmer, Robert ; Damjanovic, Dragan ; Erdem, Emre ; Keeble, David J. ; Jo, Wook ; Granzow, Torsten ; Rödel, Jürgen (2014)
Aging in the relaxor and ferroelectric state of Fe-doped (1-x)(Bi1/2Na1/2)TiO3-xBaTiO3 piezoelectric ceramics.
In: Journal of Applied Physics, 116 (10)
doi: 10.1063/1.4894630
Artikel, Bibliographie

Woodward, David I. ; Dittmer, Robert ; Jo, Wook ; Walker, David ; Keeble, Dean S. ; Dale, Matthew W. ; Rödel, Jürgen ; Thomas, Pam A. (2014)
Investigation of the depolarisation transition in Bi-based relaxor ferroelectrics.
In: Journal of Applied Physics, 115 (11)
doi: 10.1063/1.4869132
Artikel, Bibliographie

Dittmer, Robert ; Gobeljic, Danka ; Jo, Wook ; Shvartsman, Vladimir V. ; Lupascu, Doru C. ; Jones, Jacob L. ; Rödel, Jürgen (2014)
Ergodicity reflected in macroscopic and microscopic field-dependent behavior of BNT-based relaxors.
In: Journal of Applied Physics, 115 (8)
doi: 10.1063/1.4867157
Artikel, Bibliographie

Dittmer, Robert ; Jo, Wook ; Webber, Kyle G. ; Jones, Jacob L. ; Rödel, Jürgen (2014)
Local structure change evidenced by temperature-dependent elastic measurements: Case study on Bi1/2Na1/2TiO3-based lead-free relaxor piezoceramics.
In: Journal of Applied Physics, 115 (8)
doi: 10.1063/1.4866092
Artikel, Bibliographie

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)
doi: 10.1111/jace.12493
Artikel, Bibliographie

Dittmer, Robert ; Webber, Kyle G. ; Aulbach, Emil ; Jo, Wook ; Tan, Xiaoli ; Rödel, Jürgen (2013)
Electric-field-induced polarization and strain in 0.94(Bi1/2Na1/2)TiO3–0.06BaTiO3 under uniaxial stress.
In: Acta Materialia, 61 (4)
doi: 10.1016/j.actamat.2012.11.012
Artikel, Bibliographie

Dittmer, Robert ; Webber, Kyle G. ; Aulbach, Emil ; Jo, Wook ; Tan, Xiaoli ; Rödel, Jürgen (2013)
Optimal working regime of lead–zirconate–titanate for actuation applications.
In: Sensors and Actuators A: Physical, 189
doi: 10.1016/j.sna.2012.09.015
Artikel, Bibliographie

Dittmer, Robert (2013)
Lead-Free Piezoceramics – Ergodic and Nonergodic Relaxor Ferroelectrics Based on Bismuth Sodium Titanate.
Technische Universität Darmstadt
Dissertation, Erstveröffentlichung

Dittmer, Robert ; Anton, Eva-Maria ; Jo, Wook ; Simons, Hugh ; Daniels, John E. ; Hoffman, Mark ; Pokorny, Jan ; Reaney, Ian M. ; Rödel, Jürgen (2012)
A High-Temperature-Capacitor Dielectric Based on K0.5Na0.5NbO3-Modified Bi1/2Na1/2TiO3-Bi1/2K1/2TiO3.
In: Journal of the American Ceramic Society, 95 (11)
doi: 10.1111/j.1551-2916.2012.05321.x
Artikel, Bibliographie

Dittmer, Robert ; Jo, Wook ; Rödel, Jürgen ; Kalinin, Sergei ; Balke, Nina (2012)
Nanoscale Insight Into Lead-Free BNT-BT-xKNN.
In: Advanced Functional Materials, 22 (20)
doi: 10.1002/adfm.201200592
Artikel, Bibliographie

Aksel, Elena ; Forrester, Jennifer S. ; Foronda, Humberto M. ; Dittmer, Robert ; Damjanovic, Dragan ; Jones, Jacob L. (2012)
Structure and properties of La-modified Na0.5Bi0.5TiO3 at ambient and elevated temperatures.
In: Journal of Applied Physics, 112 (5)
doi: 10.1063/1.4751357
Artikel, Bibliographie

Dittmer, Robert ; Jo, Wook ; Aulbach, Emil ; Granzow, Torsten ; Rödel, Jürgen (2012)
Frequency-dependence of large-signal properties in lead-free piezoceramics.
In: Journal of Applied Physics, 112 (1)
doi: 10.1063/1.4730600
Artikel, Bibliographie

Dittmer, Robert ; Aulbach, Emil ; Jo, Wook ; Webber, Kyle G. ; Rödel, Jürgen (2012)
Large blocking force in Bi1/2Na1/2TiO3-based lead-free piezoceramics.
In: Scripta Materialia, 67 (1)
doi: 10.1016/j.scriptamat.2012.03.031
Artikel, Bibliographie

Jo, Wook ; Dittmer, Robert ; Acosta, Matias ; Zang, Jiadong ; Groh, Claudia ; Sapper, Eva ; Wang, Ke ; Rödel, Jürgen (2012)
Giant electric-field-induced strains in lead-free ceramics for actuator applications – status and perspective.
In: Journal of Electroceramics
doi: 10.1007/s10832-012-9742-3
Artikel, Bibliographie

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)
doi: 10.1002/adfm.201102841
Artikel, Bibliographie

Dittmer, Robert ; Jo, Wook ; Daniels, John ; Schaab, Silke ; Rödel, Jürgen (2011)
Relaxor Characteristics of Morphotropic Phase Boundary (Bi1/2Na1/2)TiO3-(Bi1/2K1/2)TiO3 Modified with Bi(Zn1/2Ti1/2)O3.
In: Journal of the American Ceramic Society
doi: 10.1111/j.1551-2916.2011.04631.x
Artikel, Bibliographie

Luo, Zhenhua ; Glaum, Julia ; Granzow, Torsten ; Jo, Wook ; Dittmer, Robert ; Hoffman, Mark ; Rödel, Jürgen (2011)
Bipolar and Unipolar Fatigue of Ferroelectric BNT-Based Lead-Free Piezoceramics.
In: Journal of the American Ceramic Society, 94 (2)
doi: 10.1111/j.1551-2916.2010.04101.x
Artikel, Bibliographie

Simons, Hugh ; Daniels, John ; Jo, Wook ; Dittmer, Robert ; Studer, Andrew ; Avdeev, Maxim ; Rödel, Jürgen ; Hoffman, Mark (2011)
Electric-field-induced strain mechanisms in lead-free 94%(Bi[sub 1/2]Na[sub 1/2])TiO[sub 3]–6%BaTiO[sub 3].
In: Applied Physics Letters, 98 (8)
doi: 10.1063/1.3557049
Artikel, Bibliographie

Dittmer, Robert ; Jo, Wook ; Damjanovic, Dragan ; Rödel, Jürgen (2011)
Lead-free high-temperature dielectrics with wide operational range.
In: Journal of Applied Physics, 109 (3)
doi: 10.1063/1.3544481
Artikel, Bibliographie

Dittmer, Robert ; Clemens, Frank ; Schoenecker, Andreas ; Scheithauer, Uwe ; Ismael, Marina Rojas ; Graule, Thomas (2010)
Microstructural Analysis and Mechanical Properties of Pb(Zr,Ti)O3 Fibers Derived by Different Processing Routes.
In: Journal of the American Ceramic Society, 93 (8)
doi: 10.1111/j.1551-2916.2010.03742.x
Artikel, Bibliographie

Ahn, Cheol-Woo ; Park, Chee-Sung ; Dittmer, Robert ; Hong, Soon-Hyung ; Priya, Shashank (2010)
Effect of elemental diffusion on temperature coefficient of piezoelectric properties in KNN-based lead-free composites.
In: Journal of Materials Science, 45 (14)
doi: 10.1007/s10853-010-4550-0
Artikel, Bibliographie