Oscillatory Indirect Interaction Between Adsorbed Atoms.

Abstract

The oscillatory part of the indirect interaction between two adatoms on a metal surface, separated by a large distance R, is examined for the jellium as well as for the tight-binding model. The asymptotic form of the interaction is derived from the singularity of its Fourier transfer at wave number of q = 2k(F). For a substrate with a spherical Fermi surface, the interaction energy is proportional to cos 2k(F)r)/(R to the 5-th power). For substrates with a partially filled surface band, the interaction energy falls off much more slowly. Under simple assumptions, the interaction behaves as cos(2K(F)R)/R squared. Comparisons are made with the numerical calculations by Einstein and Schrieffer. The experimental results of Tsong on Re atoms adsorbed on W using field-ion microscopy are also discussed.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1977
Accession Number
ADA042376

Entities

People

  • Kin-Hing Lau
  • Walter Kohn

Organizations

  • University of California, San Diego

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Atoms
  • Brillouin Zones
  • California
  • Conduction Bands
  • Crystal Structure
  • Electron Gas
  • Electron Holes
  • Electrons
  • Energy Bands
  • Energy Levels
  • Excitation
  • Fermi Levels
  • Fermi Surfaces
  • Field Ion Microscopy
  • Free Electrons
  • Ground State
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Approximation Theory.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.