Theoretical Analysis of Mound Slope Selection during Unstable Multilayer Growth

Maozhi Li and J. W. Evans

Phys. Rev. Lett. 95, 256101 – Published 13 December 2005; Erratum Phys. Rev. Lett. 96, 079902 (2006)

Abstract

A “step dynamics” model is developed for mound formation during multilayer homoepitaxy. Downward funneling of atoms deposited at step edges is incorporated and controls mound slope selection. Behavior of the selected slope differs from that predicted by phenomenological continuum treatments where the lateral mass current vanishes identically. Instead, this current is shown to vary periodically and vanish only on average. An exact coarse-grained continuum formulation with appropriate boundary conditions is derived and recovers step dynamics results.

Received 26 September 2005

DOI:https://doi.org/10.1103/PhysRevLett.95.256101

Erratum

Erratum: Theoretical Analysis of Mound Slope Selection during Unstable Multilayer Growth [Phys. Rev. Lett. 95, 256101 (2005)]

Maozhi Li and J. W. Evans

Phys. Rev. Lett. 96, 079902 (2006)

Authors & Affiliations

Maozhi Li¹ and J. W. Evans²

¹Institute of Physical Research and Technology, and Ames Laboratory-USDOE, Iowa State University, Ames, Iowa 50011, USA
²Department of Mathematics, and Ames Laboratory-USDOE, Iowa State University, Ames, Iowa 50011, USA

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Issue

Vol. 95, Iss. 25 — 16 December 2005

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