The relativistic RKKY interaction, uniaxial and unidirectional magnetic anisotropies and spin glasses
Gyorffy, Balazs L.
- Publisher: IoP Publishing Ltd
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.