Low-energy vibrations at the InSb(110) surface

被引：18

作者：

Nardelli, MB

Cvetko, D

DeRenzi, V

Floreano, L

Morgante, A

Peloi, M

Tommasini, F

机构：

[1] AREA RIC,BULL UNIX COMPETENCE CTR,TRIESTE,ITALY

[2] UNIV LJUBLJANA,JOZEF STEFAN INST,LJUBLJANA,SLOVENIA

[3] UNIV MODENA,DIPARTIMENTO FIS,I-41100 MODENA,ITALY

[4] UNIV TRIESTE,DIPARTIMENTO FIS,TRIESTE,ITALY

来源：

PHYSICAL REVIEW B | 1995年 / 52卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.52.16720

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a study of low-energy vibrations at the InSb(110) surface along the <(Gamma Y)over bar> direction. Surface phonons have been measured by He inelastic scattering and a theoretical analysis has been performed by means of first-principles calculations. We have been able to distinguish the surface acoustic mode above the Rayleigh wave and to identify a surface resonance and an optical surface mode at higher energy. Theoretical calculations are shown to be in agreement with the detected phonon dispersion curves except for the surface resonance which is found 1 meV higher than calculated.

引用

页码：16720 / 16726

页数：7

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