Self-Consistent Anharmonic Theory and Its Application to Ferroelectric Crystal
Self-Consistent Anharmonic Theory and Its Application to Ferroelectric Crystal
复制标题
自洽非谐理论及其在铁电晶体中的应用
DOI：
10.1080/00150190902844783
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发表时间：
2009
期刊：
影响因子：
0.8
通讯作者：
Toshimasa Suzuki
中科院分区：
文献类型：
--
作者：
Y. Aikawa;Y. Iwazaki;Tatsuo Sakashita;Toshimasa Suzuki
采用自洽非谐模型，用变分原理方法研究了钛酸钡在居里温度附近的介电性质。利用非谐振子项和非对称势能项设计了一种试探哈密顿量，并将其作为铁电晶体的原子间相互作用势。由该理论导出的钛酸钡介电性质的温度依赖性与由第一性原理超软赝势计算确定的原子间相互作用势的实验结果符合得很好。
The dielectric properties of barium titanate near the Curie temperature are studied using the variational principle method on a self-consistent anharmonic model. A trial Hamiltonian was devised using the terms of the anharmonic oscillator and asymmetric potential energy, which was adopted as the inter-atomic potential of the ferroelectric crystal. The temperature dependence of the dielectric property of barium titanate that was derived from this theory is in good agreement with the experimental result of the inter-atomic potential determined from first-principles ultrasoft pseudo potential calculations.
DOI：
10.1143/jjap.42.6188
发表时间：
2003-09-01
期刊：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS
影响因子：
--
作者：
Wada, S;Yasuno, H;Tsurumi, T
通讯作者：
Tsurumi, T
压电锆钛酸铅（PZT）在声屏蔽技术中应用的基础研究
DOI：
--
发表时间：
2007
期刊：
Ferroelectrics 348
影响因子：
--
作者：
Y. Tajitsu;H. Ueda;K. Imoto;K. Imoto;M. Date;E. Fukada
通讯作者：
E. Fukada