Are quasi-one dimensional structures of Si stable?

被引:82
作者
Menon, M [1 ]
Richter, E
机构
[1] Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA
[2] Univ Kentucky, Ctr Computat Sci, Lexington, KY 40506 USA
关键词
D O I
10.1103/PhysRevLett.83.792
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The stability of quasi-one-dimensional structures of Si is investigated using a generalized tight-binding molecular-dynamics scheme. Our results show that these structures can be stable provided that their geometries consist of a core of fourfold coordinated atoms, surrounded by a threefold coordinated outer surface incorporating one of the most stable reconstructions of bulk Si. Recent experimental works reporting on the synthesis of Si nanowires support these findings.
引用
收藏
页码:792 / 795
页数:4
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