Abstract

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.

Keywords

Surface phononPhononResonance (particle physics)Surface (topology)Rayleigh scatteringPhysicsBar (unit)Dispersion (optics)Atomic physicsInelastic scatteringEnergy (signal processing)VibrationMode (computer interface)ScatteringCondensed matter physicsMaterials scienceOpticsQuantum mechanics

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Publication Info

Year
1995
Type
article
Volume
52
Issue
23
Pages
16720-16726
Citations
17
Access
Closed

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Marco Buongiorno Nardelli, D. Cvetko, Valentina De Renzi et al. (1995). Low-energy vibrations at the InSb(110) surface. Physical review. B, Condensed matter , 52 (23) , 16720-16726. https://doi.org/10.1103/physrevb.52.16720

Identifiers

DOI
10.1103/physrevb.52.16720