Molecular-Dynamics Study of the Morphological Evolution of a Metallic Cluster Deposited on a Surface

Autor:	Y. Kometani, Kazuhito Shintani, K. Terajima
Rok vydání:	2006
Předmět:	Metal Molecular dynamics Nanostructure Materials science Structural change Chemical physics visual_art visual_art.visual_art_medium Second moment of area Anisotropy Epitaxy Dissolution
Zdroj:	MRS Proceedings. 924
ISSN:	1946-4274 0272-9172
DOI:	10.1557/proc-0924-z08-05
Popis:	The morphological evolution of a Co cluster deposited on a Cu substrate is investigated by means of molecular-dynamics simulation. The many-body potential based on the second moment approximation of a tight-binding Hamiltonian (TB-SMA) is employed to calculate the interactions between Co and Cu atoms. The results show that the effect of the substrate anisotropy appears in the morphology of a deposited cluster. It is also revealed that the total period of the structural change of such a cluster can be divided into the three stages, viz., (I)change to an epitaxial structure, (II)overspread of diffusing Cu atoms on the cluster, and (III)solid dissolution of Co atoms into the Cu substrate.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f6ecb80355061763b1ab49c06565176c https://doi.org/10.1557/proc-0924-z08-05 Zobrazit plný text záznamu Full text from SpringerLink