Diffusion of Cu on Cu surfaces

Majid Karimi, Tom Tomkowski, Gianfranco Vidali, Ofer Biham

Research output: Contribution to journalArticle

128 Citations (Scopus)

Abstract

Diffusion of a single Cu adatom on low-index Cu surfaces with different morphologies (with and without the presence of other Cu adatoms as well as near and over stepped surfaces) is studied using the embedded-atom method and a molecular static simulation. Migration energies of a Cu adatom in the presence of other Cu adatoms which are relevant in computer simulations of island growth are calculated. We have also calculated the formation and migration energies of an adatom and a vacancy in different layers as well as formation energies of steps on various Cu surfaces. Step-step interaction is shown to be repulsive and consistent with elasticity theory. Our calculations predict a lower activation energy for diffusion of a vacancy than of an adatom for all three Cu surfaces.

Original languageEnglish (US)
Pages (from-to)5364-5374
Number of pages11
JournalPhysical Review B
Volume52
Issue number7
DOIs
StatePublished - 1995

Fingerprint

Adatoms
adatoms
energy of formation
Vacancies
embedded atom method
Elasticity
elastic properties
Activation energy
computerized simulation
activation energy
Atoms
energy
Computer simulation
simulation
interactions

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Karimi, M., Tomkowski, T., Vidali, G., & Biham, O. (1995). Diffusion of Cu on Cu surfaces. Physical Review B, 52(7), 5364-5374. https://doi.org/10.1103/PhysRevB.52.5364

Diffusion of Cu on Cu surfaces. / Karimi, Majid; Tomkowski, Tom; Vidali, Gianfranco; Biham, Ofer.

In: Physical Review B, Vol. 52, No. 7, 1995, p. 5364-5374.

Research output: Contribution to journalArticle

Karimi, M, Tomkowski, T, Vidali, G & Biham, O 1995, 'Diffusion of Cu on Cu surfaces', Physical Review B, vol. 52, no. 7, pp. 5364-5374. https://doi.org/10.1103/PhysRevB.52.5364
Karimi, Majid ; Tomkowski, Tom ; Vidali, Gianfranco ; Biham, Ofer. / Diffusion of Cu on Cu surfaces. In: Physical Review B. 1995 ; Vol. 52, No. 7. pp. 5364-5374.
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