Pimpinelli, Alberto; Villain, Jacques; Wolf, Dietrich; Metois, Jean Jacques; Heyraud, Jean Claude; Elkinani, Ilya; Uimin, Gennadi V.:
Equilibrium step dynamics on vicinal surfaces
1993
In: Surface Science, Jg. 295 (1993), Heft 1/2, S. 143 - 153
Artikel/Aufsatz in Zeitschrift1993Physik
Titel:
Equilibrium step dynamics on vicinal surfaces
Autor(in):
Pimpinelli, Alberto; Villain, Jacques; Wolf, DietrichLSF; Metois, Jean Jacques; Heyraud, Jean Claude; Elkinani, Ilya; Uimin, Gennadi V.
Erscheinungsjahr
1993
WWW URL
Erschienen in:
Titel:
Surface Science
in:
Jg. 295 (1993), Heft 1/2, S. 143 - 153
ISSN:
Signatur der UB

Abstract:

The time τ necessary for the formation of bumps due to thermal fluctuations on steps of vicinal surfaces is evaluated in various relevant cases. Formulae already derived by Mullins and Bales and Zangwill and other expressions recently published by Bartelt et al., are found as special cases. For Si(111) at 900°C we predict that τ is proportional to the step-step separation l and to the square of the fluctuation wavelength L. This prediction is found to be in reasonable agreement with direct experimental observations of equilibrium step fluctuations.