We present here the first determination of the anisotropy of the surface Debye-Waller factor involved in a surface extended x-ray-absorption fine-structure (SEXAFS) experiment. It is deduced by use of relative temperature-dependent amplitude functions for two different polarizations. The mean square relative displacements of atoms are calculated with an elaborate lattice-dynamical model, treated by a continued-fraction technique. The results are in good agreement which shows the ability of SEXAFS as a valuable tool for the study of surface vibrations.
Experimental and theoretical evidence for a strong anisotropy of the surface debye-waller factor as determined for a monolayer of cobalt on copper (111) by surface extended x-ray-absorption fine structure / P. Roubin, D. Chandesris, G. Rossi, J. Lecante, M.C. Desjonquères, G. Tréglia. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 56:12(1986), pp. 1272-1275.
Experimental and theoretical evidence for a strong anisotropy of the surface debye-waller factor as determined for a monolayer of cobalt on copper (111) by surface extended x-ray-absorption fine structure
G. Rossi;
1986
Abstract
We present here the first determination of the anisotropy of the surface Debye-Waller factor involved in a surface extended x-ray-absorption fine-structure (SEXAFS) experiment. It is deduced by use of relative temperature-dependent amplitude functions for two different polarizations. The mean square relative displacements of atoms are calculated with an elaborate lattice-dynamical model, treated by a continued-fraction technique. The results are in good agreement which shows the ability of SEXAFS as a valuable tool for the study of surface vibrations.File | Dimensione | Formato | |
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