A fully relativistic description of the hyperfine interaction in magnetic systems

Strange, Paul and Ebert, H. and Gyorffy, Balazs L. (1989) A fully relativistic description of the hyperfine interaction in magnetic systems. Hyperfine Interactions, 51 (1). pp. 929-932. ISSN 0304-3843. (doi:https://doi.org/10.1007/BF02407804) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1007/BF02407804

Abstract

Based on the spin-polarized version of the multiple scattering theory, a relativistically correct formulation for the Green’s function describing the electronic structure of magnetic metallic systems has been derived. By this way, orbital contributions to the magnetic moment and, for the first time, to the hyperfine fields, which are caused by an unquenching of the orbital momentum due to spin-orbit coupling, were accessible to a calculation. In the case of Fe, Co and Ni, it has been found, that the corresponding non-s-contributions to the hyperfine field of the conduction electrons stem nearly exclusively from the d-electrons, are positive and of the same order of magnitude as the s-part of the conduction band contribution to the total hyperfine field. In all three cases these large non-s-hyperfine fields compensate the relativistic enhancement of the (Fermi contact) s-hyperfine field compared to a non-relativistic calculation, leading to theoretical hyperfine fields which are below the experimental ones. At the moment, it cannot be decided whether this discrepancy is caused by the neglect of the non-s-contributions of the core electrons or shortcomings of the local spin density approximation.

Item Type: Article
Subjects: Q Science > QC Physics > QC176 Solid state physics
Divisions: Faculties > Sciences > School of Physical Sciences
Depositing User: Paul Strange
Date Deposited: 17 Nov 2016 15:15 UTC
Last Modified: 21 Nov 2016 10:06 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/58748 (The current URI for this page, for reference purposes)
Strange, Paul: https://orcid.org/0000-0001-5818-8032
  • Depositors only (login required):