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Misfit dislocation structure for close-packed metal-metal interfaces

Journal Article · · Physical Review Letters
;  [1]
  1. Sandia National Laboratory, Livermore, California 94550 (United States)

We describe theoretical calculations applying a 2D Frenkel-Kontorova (FK) model to the heteroepitaxial system Cu on Ru(1000). The experimentally observed variation of structure with layer thickness is simulated by scaling the adatom-adatom interaction. The minimum energy configurations are in exceptional agreement with recent scanning tunneling microscopy results showing four distinct structures as a function of thickness. These metal on metal films present a new realization of the FK model which complements previous investigations of rare gas adsorption on graphite.

OSTI ID:
113031
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 5 Vol. 75; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
English

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