Polarization response explored by joint Hamiltonian and stochastic approach

被引:0
作者
Klotins, E. [1 ]
Kuznetsov, A. [1 ]
Bely, A. [1 ]
机构
[1] Latvian State Univ, Inst Solid State Phys, LV-1063 Riga, Latvia
来源
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2009年 / 96卷 / 03期
关键词
SYMPLECTIC INTEGRATION APPROACH; PHASE-TRANSITIONS; FERROELECTRICS; DIFFUSION; SYSTEMS; PEROVSKITES; DYNAMICS;
D O I
10.1007/s00339-008-5053-6
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effect of thermal fluctuations on systems modeled by anharmonic nonconservative Hamiltonians is investigated in the framework of interacting lattice cells each cell obeying to Langevin dynamics. Representative examples addressed to critical phenomena in ferroelectrics include polarization response of a single lattice cell, ergodicity breaking, and birth of a domain, and the effect of nonlocal electroelastic interaction all derived combining the Fokker-Planck, imaginary time Schrodinger, and symplectic integration techniques.
引用
收藏
页码:549 / 555
页数:7
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