Numéro
J. Phys. Colloques
Volume 46, Numéro C4, Avril 1985
International Conference on the Structure and Properties of Internal Interfaces
Page(s) C4-361 - C4-365
DOI https://doi.org/10.1051/jphyscol:1985439
International Conference on the Structure and Properties of Internal Interfaces

J. Phys. Colloques 46 (1985) C4-361-C4-365

DOI: 10.1051/jphyscol:1985439

A QUANTUM MODEL FOR INTERATOMIC FORCES APPLIED TO AN INTERNAL SURFACE

R. Haydock1, 2

1  Institute of Theoretical Science, University of Oregon, Eugene OR 97403, U.S.A.
2  SERG Senior Visiting Fellow, Cavendish Laboratory, Madingley Road, Cambridge CB3 OHE, U.K.


Résumé
Dans les métaux il y a des forces "non pair" importantes dues à la délocalisation quantique des éléctrons. On propose un modèle pour calculer les potentiels correspondants. On l'applique à l'étude de la relaxation et de la variation de la constante de force d'un atome dans le voisinage d'une surface internal par opposition à surface libre.


Abstract
In metals these are important non-pair forces between atoms due to quantum delocalization of electrons. A model is proposed for calculating such potentials. It is applied to the relaxation and change in spring constant of an atom near an internal surface in contrast to a free surface.