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|Title:||Competing roughening mechanisms in strained heteroepitaxy : a fast kinetic Monte Carlo study|
Sander, Leonard M.
Monte Carlo methods
|Publisher:||American Physical Society|
|Source:||Physical review letters, 18 Nov. 2002, v. 89, no. 21, 216102, p. 1-4.|
|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.|
|Rights:||Physical Review Letters © 2002 The American Physical Society. The Journal's web site is located at http://prl.aps.org/|
|Appears in Collections:||AP Journal/Magazine Articles|
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