Journal Article

PreJuSER-28616

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Orientation dependence of step stiffness: Failure of SOS and Ising Models to describe experimental data

Dieluweit, S.FZJ* ; Ibach, H.FZJ* ; Giesen, M.FZJ* ; Einstein, T. L.

2003
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/2146  doi:10.1103/PhysRevB.67.121410

Abstract: We have investigated the step stiffness on Cu(001) surfaces as a function of step orientation by two independent methods at several temperatures near 300 K. Both sets of data agree well and show a substantial dependence of the stiffness on the angle of orientation. With the exception of steps oriented along [110], the experimental stiffness is significantly larger than the stiffness calculated within the solid-on-solid model and the Ising model, even if next-nearest-neighbor interactions are taken into account. Our results have considerable consequences for the understanding and for the theoretical modeling of equilibrium and growth phenomena, such as step meandering instabilities.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Institut für Grenzflächen und Vakuumtechnologien (ISG-3)
2. Institut für biologisch-anorganische Grenzflächen (ISG-4)

Research Program(s):

1. Kondensierte Materie (M02)

Appears in the scientific report 2003
Notes: This version is available at the following Publisher URL: http://prb.aps.org

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