Dynamic hysteresis of tetragonal ferroelectrics: The resonance of 90°-domain switching

被引：13

作者：

Chen, D. P. ^{[1
]}

Liu, J-M ^{[1
,2
,3
]}

机构：

[1] Nanjing Univ, Solid State Microstruct Lab, Nanjing 210093, Jiangsu, Peoples R China

[2] S China Normal Univ, Sch Phys, Inst Adv Mat, Guangzhou 510006, Guangdong, Peoples R China

[3] Chinese Acad Sci, Int Ctr Mat Phys, Shenyang, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 06期

关键词：

dielectric hysteresis; dielectric polarisation; dielectric resonance; electric domains; ferroelectric materials; ferroelectric switching; Ginzburg-Landau theory; Monte Carlo methods; DISPERSION;

D O I：

10.1063/1.3683549

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The dynamic hysteresis of ferroelectric lattice with 90 degrees-domain structure in response to time-varying electric field of frequency omega and amplitude E-0 is investigated using Monte Carlo simulation based on the Ginzburg-Landau phenomenological theory. A resonance mode of the polarization switching at low frequency range, associated with cluster dipole switching, beside the dipole switching resonance mode, is revealed, characterized by two separate peaks in the hysteresis area spectrum A(omega). It is indicated that the power law scaling behaviors A(omega) similar to omega(alpha) for omega -> 0 and A(omega) similar to omega(-beta) for omega -> infinity remain applicable. (C) 2012 American Institute of Physics. [doi:10.1063/1.3683549]

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