Results 31 to 40 of about 8,790 (190)

Barkhausen Noise in a Relaxor Ferroelectric [PDF]

Physical Review Letters, 2001
Barkhausen noise, including both periodic and aperiodic components, is found in and near the relaxor regime of a familiar relaxor ferroelectric, PbMg$_{1/3}$Nb$_{2/3}$O$_3$, driven by a periodic electric field. The temperature dependences of both the amplitude and spectral form show that the size of the coherent dipole moment changes shrink as the ...
Colla, Eugene V., Chao, Lambert K., Weissman, M. B.   +2 more
openaire   +3 more sources

Development of Ferroelectric Order in Relaxor (1-x)Pb(Mg1/3Nb2/3)O3 - xPbTiO3

, 2002
The microstructure and phase transition in relaxor ferroelectric Pb(Mg1/3Nb2/3)O3 (PMN) and its solid solution with PbTiO3 (PT), PMN-xPT, remain to be one of the most puzzling issues of solid state science.
A. A. Bokov, A. A. Bokov, A. A. Bokov, A. A. Bokov, A. A. Bokov, A. A. Bokov, A. A. Bokov, B. Dkhil, B. Noheda, B. Noheda, B. Noheda, C.-S. Tu, D. Viehland, E. V. Colla, G. Burns, G. Calvarin, G. K. Williamson, G. Shirane, H. Arndt, J. Gao, K. Fujishiro, K. Hirota, L. Bellaiche, L. E. Cross, L. W. Finger, N. de Mathan, O. Bunina, O. Didault, O. Noblanc, P. Bonneau, P. M. Gehring, P. Stephens, R. Blinc, R. D. Shannon, R. E. Newhnam, R. Pirc, S. B. Vakhrushev, S. J. Jang, S. L. Swartz, S. W. Choi, S. Wakimoto, S.-E. Park, S.-E. Park, T. Shrout, T. Y. Koo, V. Westphal, W. Kleemann, Y. Bing, Y. Imry, Y. Uesu, Z.-G. Ye, Z.-G. Ye, Z.-G. Ye, Z.-G. Ye, Z.-G. Ye   +54 more
core   +1 more source

First Principles Theories of Piezoelectric Materials

, 2007
Piezoelectrics have long been studied using parameterized models fit to experimental data, starting with the work of Devonshire in 1954. Much has been learned using such approaches, but they can also miss major phenomena if the materials properties are ...
Cohen, R. E.
core   +1 more source

Spatially Resolved Mapping of Local Polarization Dynamics in an Ergodic Phase of Ferroelectric Relaxor [PDF]

, 2008
Spatial variability of polarization relaxation kinetics in relaxor ferroelectric 0.9Pb(Mg1/3Nb2/3)O3-0.1PbTiO3 is studied using time-resolved Piezoresponse Force Microscopy.
A. A. Bokov, A. N. Morozovska, B. J. Rodriguez, E. Dagotto, I. T. Jolliffe, J. D. Budai, M. Bertero, M. T. Hagan, S. Haykin, S. Jesse, S. V. Kalinin, Z.-G. Ye   +11 more
core   +3 more sources

Ferroelectricity and Self-Polarization in Ultrathin Relaxor Ferroelectric Films [PDF]

Scientific Reports, 2016
AbstractWe report ferroelectricity and self-polarization in the (001) oriented ultrathin relaxor ferroelectric PMN-PT films grown on Nb-SrTiO3, SrRuO3 and La0.7Sr0.3MnO3, respectively. Resistance-voltage measurements and AC impedance analysis suggest that at high temperatures Schottky depletion width in a 4 nm thick PMN-PT film deposited on Nb-SrTiO3 ...
Peixian Miao, Yonggang Zhao, Nengneng Luo, Diyang Zhao, Aitian Chen, Zhong Sun, Meiqi Guo, Meihong Zhu, Huiyun Zhang, Qiang Li   +9 more
openaire   +2 more sources

Time-Resolved Nanobeam X-ray Diffraction of a Relaxor Ferroelectric Single Crystal under an Alternating Electric Field

Crystals, 2021
Lead-containing relaxor ferroelectrics show enormous piezoelectric capabilities relating to their heterogeneous structures. Time-resolved nanobeam X-ray diffraction reveals the time and position dependences of the local lattice strain on a relaxor ...
Shinobu Aoyagi, Ayumi Aoyagi, Hiroaki Takeda, Hitoshi Osawa, Kazushi Sumitani, Yasuhiko Imai, Shigeru Kimura   +6 more
doaj   +1 more source

Magnetic control of large room-temperature polarization

, 2009
Numerous authors have referred to room-temperature magnetic switching of large electric polarizations as The Holy Grail of magnetoelectricity.We report this long-sought effect using a new physical process of coupling between magnetic and ferroelectric ...
Ashok Kumar, Astrov D N, Astrov D N, Bao D, Correa M, Cross L E, Curie P, Dzyaloshinskii I E, Dzyaloshinskii I E, Fox D L, Freeman A J, G L Sharma, J F Scott, Karmarkar M, R Blinc, R Pirc, R S Katiyar, Samara G A, Scott J F, Smolenskii G A, Smolenskii G A, Smolenskii G A, van den Brink J, Ventura J, Wu E, Ye Z-G   +25 more
core   +2 more sources

High-temperature electromechanical actuation of relaxor ferroelectric polymers blended with normal ferroelectric polymer

Giant
Soft actuators that can operate at high temperatures are of great interest in emerging research fields such as microfluidics, soft robotics, automotive, aircraft, and bioelectronics.
Quang Van Duong, Chanho Park, Yujeong Lee, Seungmin Lee, Thu Thi Nguyen, Vinh Phu Nguyen, Kyuho Lee, Fabrice Domingues Dos Santos, Cheolmin Park, Seung Tae Choi   +9 more
doaj   +1 more source

Dielectric and ferroelectric properties of CuO-doped lead magnesium niobate-based relaxor ferroelectric ceramics [PDF]

Journal of Advanced Dielectrics, 2019
In this work, we report the dielectric and ferroelectric properties of CuO-doped (1−x)[0.5573Pb(Mg1∕3Nb2∕3)O3-0.4427PbTiO3]-xBa(Zn1∕3Nb2∕3)O3 (PMNT-xBZN) relaxor ferrielectric ceramic samples with x=0.1725, 0.1925, 02125 and 0.2325, which were fabricated
Li Jin, Jing Pang, Yunyao Huang, Wenting Luo, Xu Lu, Xiaoyong Wei   +5 more
doaj   +1 more source

The Persistence and Memory of Polar Nano-Regions in a Ferroelectric Relaxor Under an Electric Field

, 2005
The response of polar nanoregions (PNR) in the relaxor compound Pb[(Zn$_{1/3}$Nb$_{2/3}$)$_{0.92}$Ti$_{0.08}$]O$_3$ subject to a [111]-oriented electric field has been studied by neutron diffuse scattering. Contrary to classical expectations, the diffuse
G. Shirane, Guangyong Xu, J. Kuwata, K. H. Fisher, K. Uchino, L. E. Cross, P. M. Gehring, R. J. Birgeneau, S. B. Vakhrushev   +8 more
core   +1 more source