Diffusion of Ag dimer on Cu (110) by dissociation-reassociation and concerted jump processes

Activation barriers; Cu(1 1 0); Dynamic potential; Embedded-atom method; Jump process; Many-body potentials; Molecular dynamics simulations; Semi-empirical; Binding energy; Copper; Dimers; Markov processes; Molecular dynamics; Surface diffusion; Transparent optical networks; Dissociation

Abstract :

[en] In this work we investigate the diffusion of Ag dimer on Cu(110) surface by molecular dynamics simulation based on semi-empirical many-body potentials derived from the embedded atom method. The dissociation-reassociation process is predicted to be dominant in static regime and this is confirmed by the dynamic investigation. A good agreement is found between static activation barrier and dynamic potential barrier. © 2012 IEEE.

Disciplines :

Materials science & engineering

Author, co-author :

Sbiaai, K.; Laboratoire de la Physique de la Matière Condensée, Université Chouaïb Doukkali, Morocco, Laboratoire de la Physique de la Matiere Condensee, Universite de Liege, Belgium

Boughaleb, Y.; Laboratoire de la Physique de la Matière Condensée, Université Chouaïb Doukkali, Morocco, Hassan II Academy of Sciences and Techniques, Morocco

Raty, Jean-Yves ; Université de Liège - ULiège > Département de physique > Physique de la matière condensée

Hajjaji, A.; Ecole Nationale des Sciences Appliquées (ENSAJ), Université Chouaïb Doukkali, Morocco

Arabaoui, A.; Laboratoire de la Physique de la Matière Condensée, Université Chouaïb Doukkali, Morocco

Kara, A.; Department of Physics, University of Central Florida, United States

Sahraoui, B.; LUNAM Université, Université d'Angers, Laboratoire MOLTECH-Anjou, 2 bd Lavoisier, 49045 Angers cedex, France

Language :

English

Title :

Diffusion of Ag dimer on Cu (110) by dissociation-reassociation and concerted jump processes

Publication date :

2012

Event name :

14th International Conference on Transparent Optical Networks, ICTON 2012

Event date :

2 July 2012 through 5 July 2012

Audience :

International

Journal title :

International Conference on Transparent Optical Networks

ISSN :

2162-7339

Peer reviewed :

Peer reviewed

Available on ORBi :

since 17 June 2015

Statistics

Number of views

70 (4 by ULiège)

Number of downloads

1 (1 by ULiège)

More statistics

Scopus citations^®

Scopus citations^®
without self-citations

OpenCitations

OpenAlex citations

Bibliography

H. Oughaddou et al.: Self-organization of Ge tetramer on Ag(001) surface: A 2D realization of unusual substrate mediated interactions, Surf. Sc., vol 602. pp 506, Nov. 2008.
S. S. Hayat, M. A. Ortigoza, M. A. Choudhy and T. S. Rahman: Diffusion of the Cu monomer and dimer on Ag(111): Molecular dynamics simulations and density functional theory calculations, Phy. Rev B., vol. 82. pp. 085405, Jun. 2010.
S. C. Wang and G. Ehrlich: Steps and the surface dissociation of metal dimers: Direct observations on Ir(111), Phys. Rev. B., vol 65. pp 121407(R), Mar. 2002.
G. Antczak and G. Ehrlich: Jump processes in surface diffusion, Surf. Sci. Rep., vol. 62. pp. 39, Dec.2007.
K. Kyuno, A. Gölzhäuser, G. Ehrlich: Growth and the diffusion of platinum atoms and dimers on Pt(111), Surf. Sci, vol. 397, pp. 191, Feb. 1998.
T. T. Tsong, C-L Chen: Diffusion of Ir-dimers on Ir(110) surfaces by atomic-exchange and atomic-hopping mechanisms, Surf. Sci., vol. 246, pp. 13, Apr. 1991.
G.L. Kellogg: Field ion microscope investigations of adatom and dimer diffusion along Rh(100) step edges Surf. Sci., vol. 359, pp. 237. Jul. 1996.
T.R. Linderoth, S. Horch, E. Laegsgaard, I. Stensgaard and F. Besenbacher: Dynamics of Pt adatom and dimers on Pt(110) (1×2) observed directly by STM, Surf. Sci., vol. 402, pp. 308, May.1998.
T.R. Linderoth et al.: Energitics and dynamics of Pt dimers on Pt(110) (1×2), Phy. Rev B., vol. 61, pp. R2448, Jan. 2000.
M. S. Daw and M. I. Baskes: Embedded-atom method: Derivation and application to impurities, surfaces, and other defects in metals, Phy. Rev B., vol. 29, pp. 6443, Jun. 1984.
G. Kellogg: Field ion microscope studies of single-atom surface diffusion and cluster nucleation on metal surfaces, Surf. Sci. Rep., vol. 21, pp. 1, Dec. 1994.