摘要
采用基于第一性原理计算的平面波赝势方法,在局域密度近似下对六角结构的BaVS3电子结构进行计算,接着采用线性响应的密度泛函微扰理论研究了BaVS3化合物的晶格动力学性质以及热力学性质.获得了自力常数、原子间力常数以及定容比热.
The electronic structure of hexagonal perovskite BaVS3 compound is studied by first-principles calculations based on the pseudopotential and plane wave basis. Then the lattice dynamics and thermodynamieal properties calculations have been done with the linear-response approach, and calculations of the interatomic force constants and specific heat are reported.
出处
《南京师大学报(自然科学版)》
CAS
CSCD
北大核心
2010年第1期68-72,共5页
Journal of Nanjing Normal University(Natural Science Edition)
基金
解放军理工大学预研基金(2009JC02)
关键词
电子结构
晶格动力学和热力学
密度泛函扰动理论
BaVS3
electronic structure, lattice dynamics and thermodynamic, density-functional perturbation theory, BaVS3