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Evidence that the Effective Temperature of Crystal Surfaces is of Real Nature
Author(s) -
Vlasov A. D.
Publication year - 1995
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170300515
Subject(s) - crystal (programming language) , thermal , surface (topology) , materials science , lattice (music) , diffraction , chemical physics , thermal expansion , chemical equation , surface energy , surface diffusion , chemistry , thermodynamics , physics , optics , geometry , composite material , mathematics , adsorption , computer science , acoustics , programming language
It is possible to represent some surface processes by the equations used for crystal bulk by inserting in those equations the effective temperature instead of changing a lot of bulk parameters to make the equations applicable for surfaces. The surface processes include surface diffusion, heterogeneous catalysis, low energy electron diffraction etc. The effective surface temperature may be measured by thermal expansion of the first one or two surface atomic layers of crystal lattice. In this way it can be experimentally evidenced the reality of the effective temperature. Some possible applications of it in the physical and chemical processes had been described.