Critical Behavior in Ferroelectrics from First Principles

被引：17

作者：

Almahmoud, Emad ^{[1
]}

Kornev, Igor ^{[2
,3
]}

Bellaiche, L. ^{[2
]}

机构：

[1] Al Al Bayt Univ, Dept Phys, Mafraq 25113, Jordan

[2] Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA

[3] Ecole Cent Paris, CNRS, Lab SPMS, UMR 8580, F-92295 Chatenay Malabry, France

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 10期

基金：

美国国家科学基金会;

关键词：

RELAXOR FERROELECTRICS; PHASE-TRANSITION; ISING-MODEL;

D O I：

10.1103/PhysRevLett.102.105701

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report first-principles-based calculations, combined with an efficient Monte Carlo technique, that undoubtedly show that Pb(Zr0.5Ti0.5)O-3, one of the most important ferroelectrics to date, adopts critical behavior that strongly deviates from the classical mean-field approach while being, in fact, consistent with the 3D-random Ising universality class.

引用

页数：4

共 32 条

[1] CRITICAL BEHAVIOR OF MAGNETS WITH DIPOLAR INTERACTIONS .1. RENORMALIZATION GROUP NEAR 4 DIMENSIONS [J].