The relativistic RKKY interaction, uniaxial and unidirectional magnetic anisotropies and spin glasses

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Staunton, Julie ; Gyorffy, Balazs L. ; Poulter, J ; Strange, Paul (1989)
  • Publisher: IoP Publishing Ltd
  • Related identifiers: doi: 10.1088/0953-8984/1/31/014
  • Subject: 11000/12
    arxiv: Condensed Matter::Strongly Correlated Electrons

We study the interaction between two and three magnetic impurities in a metallic host in which the mediating electrons are modelled by relativistic 'jellium'. We find the relativistic multi-site and multi-component generalisation of the R K K Y interaction. In addition to the usual isotropic spin-spin interaction we find uniaxial and unidirectiorial contributions. We comment on the importance of these to the understanding of magnetic anisotropy of spin glasses.
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