Competing Roughening Mechanisms in Strained Heteroepitaxy: A Fast Kinetic Monte Carlo Study

Chi Hang Lam; Chun Kin Lee; Leonard M. Sander

doi:10.1103/PhysRevLett.89.216102

Competing Roughening Mechanisms in Strained Heteroepitaxy: A Fast Kinetic Monte Carlo Study

Chi Hang Lam, Chun Kin Lee, Leonard M. Sander

Research output: Journal article publication › Journal article › Academic research › peer-review

82 Citations (Scopus)

Abstract

We study the morphological evolution of strained heteroepitaxial films using kinetic Monte Carlo simulations in two dimensions. A novel Green’s function approach, analogous to boundary integral methods, is used to calculate elastic energies efficiently. We observe island formation at low lattice misfit and high temperature that is consistent with the Asaro-Tiller-Grinfeld instability theory. At high misfit and low temperature, islands or pits form according to the nucleation theory of Tersoff and LeGoues.

Original language	English
Journal	Physical Review Letters
Volume	89
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevLett.89.216102
Publication status	Published - 1 Jan 2002

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.89.216102

http://hdl.handle.net/10397/4843

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abstract = "We study the morphological evolution of strained heteroepitaxial films using kinetic Monte Carlo simulations in two dimensions. A novel Green{\textquoteright}s function approach, analogous to boundary integral methods, is used to calculate elastic energies efficiently. We observe island formation at low lattice misfit and high temperature that is consistent with the Asaro-Tiller-Grinfeld instability theory. At high misfit and low temperature, islands or pits form according to the nucleation theory of Tersoff and LeGoues.",

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Competing Roughening Mechanisms in Strained Heteroepitaxy: A Fast Kinetic Monte Carlo Study

Abstract

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