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Publication Citation: Anisotropic surface-state-mediated RKKY interaction between adatoms

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Author(s): Paul N. Patrone; T L. Einstein;
Title: Anisotropic surface-state-mediated RKKY interaction between adatoms
Published: January 18, 2012
Abstract: Motivated by recent numerical studies of Ag on Pt(111), we derive a far-field expression for the RKKY interaction mediated by surface states on a (111) FCC surface. The main contribution to the interaction comes from electrons whose Fermi velocity is parallel to the vector connecting the interacting adatoms. The interaction is oscillatory; the amplitude and wavelength of oscillations have angular dependence, which is directly related to the anisotropy of the surface state dispersion relation.
Citation: Physical Review B
Volume: 85
Issue: 4
Keywords: Surface State; RKKY; Anisotropy; Stationary Phase
Research Areas: Nanotech/Environment, Health & Safety
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