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Title: Novel Microscopic Mechanism of Intermixing during Growth on Soft Metallic Substrates

Abstract

Generic computer simulations using empiric interatomic potentials suggest a new, collective mechanism that could be responsible for mixing at heteroepitaxial interfaces. Even if single adsorbate atoms diffuse by hopping on the substrate surface and do not mix at the terraces, two-dimensional islands formed by nucleation may become unstable above a certain critical size and explode upwards forming clusters of several atomic layers. This process is accompanied by strong distortions of the underlying atomic layers, and on soft materials it can result in surface etching and incorporation of substrate atoms into the islands. (c) 2000 The American Physical Society.

Authors:
; ; ; ; ; ; ;
Publication Date:
OSTI Identifier:
20216440
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 84; Journal Issue: 19; Other Information: PBD: 8 May 2000; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; INTERFACES; COMPUTERIZED SIMULATION; INTERATOMIC FORCES; MIXING; EPITAXY; ADSORPTION; NUCLEATION; ATOMIC CLUSTERS; COPPER; COBALT; THEORETICAL DATA

Citation Formats

Gomez, L., Slutzky, C., Ferron, J., Figuera, J. de la, Camarero, J., Vazquez de Parga, A. L., Miguel, J. J. de, and Miranda, R. Novel Microscopic Mechanism of Intermixing during Growth on Soft Metallic Substrates. United States: N. p., 2000. Web. doi:10.1103/PhysRevLett.84.4397.
Gomez, L., Slutzky, C., Ferron, J., Figuera, J. de la, Camarero, J., Vazquez de Parga, A. L., Miguel, J. J. de, & Miranda, R. Novel Microscopic Mechanism of Intermixing during Growth on Soft Metallic Substrates. United States. doi:10.1103/PhysRevLett.84.4397.
Gomez, L., Slutzky, C., Ferron, J., Figuera, J. de la, Camarero, J., Vazquez de Parga, A. L., Miguel, J. J. de, and Miranda, R. Mon . "Novel Microscopic Mechanism of Intermixing during Growth on Soft Metallic Substrates". United States. doi:10.1103/PhysRevLett.84.4397.
@article{osti_20216440,
title = {Novel Microscopic Mechanism of Intermixing during Growth on Soft Metallic Substrates},
author = {Gomez, L. and Slutzky, C. and Ferron, J. and Figuera, J. de la and Camarero, J. and Vazquez de Parga, A. L. and Miguel, J. J. de and Miranda, R.},
abstractNote = {Generic computer simulations using empiric interatomic potentials suggest a new, collective mechanism that could be responsible for mixing at heteroepitaxial interfaces. Even if single adsorbate atoms diffuse by hopping on the substrate surface and do not mix at the terraces, two-dimensional islands formed by nucleation may become unstable above a certain critical size and explode upwards forming clusters of several atomic layers. This process is accompanied by strong distortions of the underlying atomic layers, and on soft materials it can result in surface etching and incorporation of substrate atoms into the islands. (c) 2000 The American Physical Society.},
doi = {10.1103/PhysRevLett.84.4397},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 19,
volume = 84,
place = {United States},
year = {2000},
month = {5}
}