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Hyperfine interaction of impurity silver atoms in alkali halide crystals

Authors
Journal
Journal of Physics and Chemistry of Solids
0022-3697
Publisher
Elsevier
Publication Date
Volume
54
Issue
3
Identifiers
DOI: 10.1016/0022-3697(93)90262-p
Keywords
  • Electron Spin Resonance
  • Silver Impurities
  • Ionic Crystals
  • Short-Range Forces
  • Impurity-Host Interaction

Abstract

Abstract Experimental data from Ag 0 impurities in NaCl, KCl and KBr hosts are used to extrapolate hyperfine (hf) shifts of Ag 0 impurities in the remaining 13 alkali halide crystals with rocksalt structure. The extrapolation is based on scaling relations of hf shifts with the host lattice spacing and with orbital moments of host neighbor ions. A comparison of hf shifts of Ag 0 impurities in both alkali halide and rare gas matrices indicates a large contribution from the Madelung potential. As a consequence, a revised determination of neighbor ion displacements from superhyperfine interaction may be necessary.

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