A Simple Model for the Surface Phenomena

• Authors: L. Wojtczak
• Languages of publication: EN

Abstracts

EN

The simplicity of the present model consists in the construction of the Hamiltonian based on the models of quasi-harmonic oscillators coupled to quasi-free electrons with the effective parameters which are estimated by means of the pseudoharmonic approach and coherent potential approximation, respectively. The geometry of a sample is determined by the topological disorder at the surface reflecting the surface roughness. The model is discussed in connection with the friction related to the melting and pre-melting phenomena. The backscattering of electrons seems to be a testing tool useful not only for decorated surfaces but also for quasi-liquid layers.

Keywords

EN

68.15.+t; 68.45.-v

• Journal: Acta Physica Polonica A
• Year: 1993
• Volume: 83
• Issue: 5
• Pages: 685-699

Dates

published

1993-05

Contributors

author

L. Wojtczak

• Ecole Nationale d'Ingénieurs de St. Etienne, Saint Etienne, France

Identifiers

DOI

10.12693/APhysPolA.83.685