Decay of Grooves Cut in a Surface with Singular Orientation when the Neighbouring Orientations are UnstableChristophe Duport1, Anna Chame1, W.W. Mullins2 and Jacques Villain1
1 CEA, Département de Recherche Fondamentale sur la Matière Condensée, SPSMS, 38054 Grenoble Cedex 9, France
2 Carnegie-Mellon University, Department of Materials Science and Engineering, Pittsburgh, PA 15213, USA
Received 19 February 1996, accepted 10 April 1996
The decay of a grooved profile when the average orientation is singular is treated in the particular case when the orientations close to the singular one are unstable. The system is assumed to exchange atoms with its vapour. The step fluctuations, which allow the profile decay, are treated by a partially exact transfer matrix method. The time to peel the topmost layer is obtained as a function of the width of a terrace: , where the constant k depends on the temperature.
© Les Editions de Physique 1996