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A surface‐near stress resulting from Tamm's surface states
Author(s) -
Gräfe W.
Publication year - 1989
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.2170240909
Subject(s) - surface stress , surface tension , surface (topology) , specific surface energy , surface states , surface energy , stress (linguistics) , condensed matter physics , electron , tension (geology) , capillary surface , chemistry , materials science , physics , thermodynamics , quantum mechanics , geometry , mathematics , linguistics , philosophy , compression (physics)
From the energy band approximation of K RONIG and P ENNEY and T AMM'S model of surface states a contribution of the electrons localized at the surface to the surface tension of a solid has been deduced. The results illustrate the difference between the surface tension and the surface energy in the case of a solid. It has been explained how the above mentioned contribution to the surface tension is connected with the existence of a surplus surface‐near lokal stress.