碱土金属
碱金属
模数
晶格常数
材料科学
凝聚态物理
体积模量
格子(音乐)
土(古典元素)
过渡金属
热力学
化学
物理
复合材料
量子力学
有机化学
催化作用
数学物理
衍射
声学
作者
Subrata Jana,Kedar Sharma,Prasanjit Samal
摘要
The bulk properties (lattice constants, bulk moduli, and cohesive energies) of alkali, alkaline-earth, and transition metals are studied within the framework of the recently developed meta-GGA (meta-Generalized Gradient Approximation) semilocal exchange-correlation functionals. To establish the applicability, broadness and accuracy of meta-GGA functionals we also put the results of PBE (Perdew-Burke-Ernzerhof) and PBEsol (PBE reparametrized for solids) functionals. The interesting feature of the present paper is that it measures the accuracy of the recently developed TM (Tao-Mo) and TMTPSS (TM exchange with Tao-Perdew-Staroverov-Scuseria (TPSS) correlation) and SCAN (Strongly Constrained and Appropriately Normed) functionals on describing aforementioned properties. The present systematic investigation shows that the TM is accurate in describing the lattice constants while for cohesive energies and bulk moduli the accuracy is biased towards the PBE and TPSS functionals.
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