Vibrational properties of the quasi-one-dimensional In/Si(111)-(4 X 1) system -: art. no. 193406

被引:11
作者
Bechstedt, F [1 ]
Krivosheeva, A [1 ]
Furthmüller, J [1 ]
Stekolnikov, AA [1 ]
机构
[1] Univ Jena, Inst Festkorpertheorie & Theoret Opt, D-07743 Jena, Germany
来源
PHYSICAL REVIEW B | 2003年 / 68卷 / 19期
关键词
D O I
10.1103/PhysRevB.68.193406
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We present results of ab initio studies of the In/Si(111) surface. Our findings for the equilibrium structure confirm the double zigzag chain model in very good agreement with other calculations and measurements. The harmonic analysis of the lattice vibrations indicates strong surface modes, the spectrum of which shows features similar to that observed in a recent Raman study. The In-related modes possess low frequencies and, hence, should remain occupied also at temperatures of the phase transition.
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页数:4
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