By means of the first-principles calculations, we performed a systematical investigation on the structure, electronic and mechanical properties of MBSi2 (M = Li, Na, K and Rb) and BSi2. The changes of lattice parameters and interatomic distance from BSi2 to RbBSi2 were discussed in detail. Both LiBSi2 and NaBSi2 with distorted sp(3) hybridization BSi2 three period networks are semiconductors, whereas KBSi2 and RbBSi2 with mixtures of sp(2) and sp(3) hybridization are metallic because of the weaker interaction in two-dimensional BSi2 net. Interestingly, a new BSi2 phase with no guest atom, featuring a metallic behavior, is predicted to be dynamically and mechanically stable. (C) 2016 Published by Elsevier B.V.
机构:
Southwest Petr Univ, Sch New Energy, Chengdu 610500, Peoples R China
Southwest Petr Univ, Sch Mat, Chengdu 610500, Peoples R ChinaSouthwest Petr Univ, Sch New Energy, Chengdu 610500, Peoples R China
机构:
Sichuan Univ, Sch Phys Sci & Technol, Chengdu 610064, Peoples R ChinaSichuan Univ, Sch Phys Sci & Technol, Chengdu 610064, Peoples R China
Yu, Bai-Ru
Yang, Jun-Wei
论文数: 0引用数: 0
h-index: 0
机构:
Sichuan Univ, Sch Phys Sci & Technol, Chengdu 610064, Peoples R ChinaSichuan Univ, Sch Phys Sci & Technol, Chengdu 610064, Peoples R China
Yang, Jun-Wei
Guo, Hua-Zhong
论文数: 0引用数: 0
h-index: 0
机构:
Sichuan Univ, Sch Phys Sci & Technol, Chengdu 610064, Peoples R ChinaSichuan Univ, Sch Phys Sci & Technol, Chengdu 610064, Peoples R China
Guo, Hua-Zhong
Ji, Guang-Fu
论文数: 0引用数: 0
h-index: 0
机构:
China Acad Engn Phys, Natl Key Lab Shock Wave & Detonat Phys Res, Inst Fluid Phys, Mianyang 621900, Peoples R ChinaSichuan Univ, Sch Phys Sci & Technol, Chengdu 610064, Peoples R China
Ji, Guang-Fu
Chen, Xiang-Rong
论文数: 0引用数: 0
h-index: 0
机构:
Sichuan Univ, Sch Phys Sci & Technol, Chengdu 610064, Peoples R China
Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R ChinaSichuan Univ, Sch Phys Sci & Technol, Chengdu 610064, Peoples R China
机构:
Xianyang Normal Univ, Coll Phys & Elect Engn, Xianyang 712000, Peoples R ChinaXianyang Normal Univ, Coll Phys & Elect Engn, Xianyang 712000, Peoples R China
Li, Jing
Chen, Haichuan
论文数: 0引用数: 0
h-index: 0
机构:
Xihua Univ, Sch Elect Engn & Elect Informat, Chengdu 610039, Peoples R ChinaXianyang Normal Univ, Coll Phys & Elect Engn, Xianyang 712000, Peoples R China
Chen, Haichuan
Zhang, Xu
论文数: 0引用数: 0
h-index: 0
机构:
SinoCarbon Innovat & Investment Co Ltd, Room B922 Ge Hua Bldg,1 Qing Long Alley, Beijing 100007, Peoples R ChinaXianyang Normal Univ, Coll Phys & Elect Engn, Xianyang 712000, Peoples R China