Title of article
Vibrational modes of the K/Si(1 1 1)-(3×1) surface studied by high-resolution electron energy loss spectroscopy
Author/Authors
Ashima، نويسنده , , Hidenori and Sakamoto، نويسنده , , Kazuyuki and Takeda، نويسنده , , Hideo and Uchida، نويسنده , , Wakio، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2002
Pages
5
From page
332
To page
336
Abstract
We have investigated the vibrational modes of the K/Si(1 1 1)-(3×1) surface using high-resolution electron energy loss spectroscopy (HREELS). An energy loss peak was clearly observed in the HREELS spectra at 55 meV. The origin of the energy loss peak is assigned to be a surface phonon mode which has negligible dispersion. Taking our calculation based on a density-functional method into account, we have determined the atomic vibrational motions that produce the 55-meV peak.
Keywords
Electron energy loss spectroscopy (EELS) , phonons , alkali metals , Silicon , Density functional calculations
Journal title
Surface Science
Serial Year
2002
Journal title
Surface Science
Record number
1681336
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