The effects of polarization dynamics and domain switching energies on field induced phase transformations of perovskite ferroelectrics

被引：16

作者：

Franzbach, Daniel J. ^{[1
,2
]}

Xu, Bai-Xiang ^{[1
]}

Mueller, Ralf ^{[3
]}

Webber, Kyle G. ^{[1
]}

机构：

[1] Tech Univ Darmstadt, Dept Mat Sci, D-64287 Darmstadt, Germany

[2] Tech Univ Darmstadt, Grad Sch Computat Engn, D-64287 Darmstadt, Germany

[3] TU Kaiserslautern, Inst Appl Mech, Dept Mech & Proc Engn, D-67653 Kaiserslautern, Germany

来源：

APPLIED PHYSICS LETTERS | 2011年 / 99卷 / 16期

关键词：

dielectric hysteresis; dielectric polarisation; electric domains; ferroelectric materials; ferroelectric switching; ferroelectric transitions; relaxor ferroelectrics; FINITE-ELEMENT IMPLEMENTATION; ELECTRIC-FIELD; SINGLE-CRYSTALS; PMN-32-PERCENT-PT CRYSTALS; MONOCLINIC PHASE; 1ST PRINCIPLES; X-RAY; STRESS; EVOLUTION; BEHAVIOR;

D O I：

10.1063/1.3644957

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A time-dependent phase field model was utilized to investigate the electric field induced tetragonal-to-orthorhombic (T -> O) planar phase transformations of perovskite materials, indicated by the simulated semi-discontinuous polarization-electric field hysteresis. Simulations show that transformations are sensitive to the crystallographic orientation of the applied electric field, the energy threshold for 90 degrees domain switching and the rotation path between tetragonal variants. This indicates that the field induced phase transformation behavior has a significant influence on the evaluation and validation of the Landau coefficients. (C) 2011 American Institute of Physics. [doi:10.1063/1.3644957]

引用

页数：3

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