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Surface phonons of GaP(1 1 0) and InAs(1 1 0) |
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| Authors: | H Trger W Theis K H Rieder |
| Institution: | Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany |
| Abstract: | The dispersions of low energy surface phonon modes of GaP(1 1 0) and InAs(1 1 0) measured with inelastic He-atom scattering along the  0 0 1 directions are presented. Aside from the Rayleigh mode, additional distinct acoustic modes are observed as well as indications of optical modes. Contrary to results for GaAs(1 1 0), a rocking mode was not observed. The experimentally determined phonon dispersions are in excellent agreement with recent ab initio calculations by C. Eckl, et al. 1]. |
| Keywords: | Antimony Gallium phosphide Indium arsenide Phonons Atom–solid scattering and diffraction – inelastic Low index single crystal surfaces |
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