Tight-binding sp3d5 Hamiltonian for Si

被引:7
作者
Ren, SY
Chen, X
Dow, JD [1 ]
机构
[1] Arizona State Univ, Dept Phys & Astron, Tempe, AZ 85287 USA
[2] Peking Univ, Dept Phys, Beijing 100871, Peoples R China
关键词
D O I
10.1016/S0022-3697(97)00190-X
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A new nearest-neighbor empirical tight-binding Hamiltonian is obtained for the homopolar cubic an sp (3)d(5) basis centered on each site, is an 18 X 18 matrix at elemental semiconductor Si. The Hamiltonian features each wavevector in the Brillouin zone, and has 13 adjusted parameters. This Hamiltonian provides a good description of both the valence and conduction bands of Si. (C) 1997 Published by Elsevier Science Ltd.
引用
收藏
页码:403 / 410
页数:8
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