Self-Consistent Anharmonic Theory and Its Application to the Isotope Effect on Ferroelectric Phase Transition in BaTiO_3 Crystal

Yutaka Aikawa; Tatsuo Sakashita; Toshimasa Suzuki

首页> 外文期刊>Japanese journal of applied physics >Self-Consistent Anharmonic Theory and Its Application to the Isotope Effect on Ferroelectric Phase Transition in BaTiO_3 Crystal

【24h】

Self-Consistent Anharmonic Theory and Its Application to the Isotope Effect on Ferroelectric Phase Transition in BaTiO_3 Crystal

机译：自洽非调和理论及其在同位素对BaTiO_3晶体铁电相变的影响中的应用

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

The isotope effect on ferroelectric phase transition is studied by the variational principle method using a self-consistent anharmonic model. A trial Hamiltonian was devised using the terms of the anharmonic oscillator and arbitrary potential energy between atoms. The isotope effects on BaTiO_3 ferroelectric phase transition, especially on the cubic-to-tetragonal transition, are given through a function consisting of the optical phonon. It is revealed that a heavy-isotope-enriched crystal shows a lower T_c than a light-isotope crystal, which is in agreement with the experimental Ti-isotope effects in BaTiO_3.

机译：使用自洽非谐模型，通过变分原理方法研究了同位素对铁电相变的影响。使用非谐振荡器和原子之间的任意势能的术语设计了哈密顿量试验。同位素对BaTiO_3铁电相变的影响，特别是对立方到四方相变的影响，是通过由光声子组成的函数给出的。结果表明，富含重同位素的晶体比轻同位素的晶体具有较低的T_c，这与BaTiO_3中的Ti同位素实验结果相符。

著录项

来源
《Japanese journal of applied physics》 |2010年第9issue2期|p.09ME11.1-09ME11.5|共5页
作者
Yutaka Aikawa; Tatsuo Sakashita; Toshimasa Suzuki;
展开▼
作者单位

Taiyo Yuden Research Institute, 5607-2 Nakamurodamachi, Takasaki, Gunma 370-3347, Japan;

rnTaiyo Yuden Research Institute, 5607-2 Nakamurodamachi, Takasaki, Gunma 370-3347, Japan;

rnTaiyo Yuden Research Institute, 5607-2 Nakamurodamachi, Takasaki, Gunma 370-3347, Japan;

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类
关键词

相似文献

外文文献
中文文献
专利

1. Self-Consistent Anharmonic Theory and Its Application to Ferroelectric Crystal [J] . Ferroelectrics . 2009,第Null期

机译：自洽非调和理论及其在铁电晶体中的应用
2. Self-Consistent Anharmonic Theory and Its Application to Ferroelectric Crystal [J] . Ferroelectrics . 2009,第1期

机译：自洽非调和理论及其在铁电晶体中的应用
3. Self-Consistent Anharmonic Theory and Its Application to the Soft Mode of BaTiO_3 [J] . YUTAKA AIKAWA, KATSUHIKO FUJII Ferroelectrics . 2011,第Null期

机译：自洽非调和理论及其在BaTiO_3软模中的应用
4. Equilibrium dynamics and phase transitions in quantum anharmonic crystals [C] . Yuri Kozitsky Conference on Statistical Physics . 2009

机译：Quantum Anharmonic Crystals中的平衡动力学和相变
5. Analysis and application of density functional theory to intermolecular forces, crystal structures, and pressure-induced phase transitions. [D] . Lacks, Daniel J. I. 1992

机译：密度泛函理论在分子间力，晶体结构和压力诱导的相变中的分析和应用。
6. Anharmonicity and isomorphic phase transition: a multi-temperature X-ray single-crystal and powder diffraction study of 1-(2′-aminophenyl)-2-methyl-4-nitroimidazole [O] . Agnieszka Poulain, Emmanuel Wenger, Pierrick Durand, 2014

机译：非谐性和同构相变：1-（2-氨基苯基）-2-甲基-4-硝基咪唑的多温度X射线单晶和粉末衍射研究
7. Second order structural phase transitions, free energy curvature, and temperature-dependent anharmonic phonons in the self-consistent harmonic approximation: theory and stochastic implementation [O] . Bianco, Raffaello, Errea, Ion, Paulatto, Lorenzo, 2017

机译：二阶结构相变，自由能曲率和自洽谐波中与温度有关的非谐声子近似：理论和随机实现

Self-Consistent Anharmonic Theory and Its Application to the Isotope Effect on Ferroelectric Phase Transition in BaTiO_3 Crystal

摘要

著录项

相似文献

相关主题

期刊订阅