"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

Numerical study of atomic diffusion processes of copper on silver (110) surface: Cu/Ag (110)

KHALID SBIAAI1,2, YAHIA BOUGHALEB1,3,4,* , JEAN-YVES RATY2, ABDELWAHED HAJJAJI5,* , M’HAMMED MAZROUI3, ABDELKADER KARA6

Affiliation

  1. Laboratoire de la Physique de la Matière Condensée, Université Chouaïb Doukkali, Morocco
  2. Laboratoire de la Physique de la Matière Condensée, Université de Liège, Belgium
  3. Laboratoire la Physique de la Matière Condensée, Université Hassan II Mohammedia, Morocco
  4. Hassan II Academy of Sciences and Technology, Rabat, Morocco
  5. Ecole Nationale des Sciences Appliquées (ENSAJ), Université Chouaïb Doukkali, Morocco
  6. Department of Physics, University of Central Florida, USA

Abstract

The aim of this paper is to study the diffusion of Cu adatom on Ag (110) by using the molecular dynamics simulation in the framework of the embedded atom method (EAM) as model of atomic interaction. Our simulation results predict that several diffusion processes such as simple jump, long jump and exchange mechanism may occur in the same system. The static barrier is calculated for each process by the drag method. The dynamic activation energy calculated from the Arrhenius law is in a good agreement with the static barrier. The presence of double jump is studied using velocity correlation function showing small contributions in diffusion process. Implications of these findings are discussed in more details..

Keywords

Molecular dynamics simulation, Surface diffusion, Jump rate, Velocity correlation function.

Submitted at: May 30, 2012
Accepted at: Oct. 30, 2012

Citation

KHALID SBIAAI, YAHIA BOUGHALEB, JEAN-YVES RATY, ABDELWAHED HAJJAJI, M’HAMMED MAZROUI, ABDELKADER KARA, Numerical study of atomic diffusion processes of copper on silver (110) surface: Cu/Ag (110), Journal of Optoelectronics and Advanced Materials Vol. 14, Iss. 11-12, pp. 1059-1065 (2012)