Consequences of relativity for the hyperfine interactions — with applications to transition metals |
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Authors: | H Ebert H Akai |
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Institution: | (1) Siemens AG, ZFE BT MR 11, Postfach 3220, D-8250 Erlangen, Germany;(2) Present address: Institut für Physikalische Chemie, Universität-München, Theresienstrasse 37-41, D-80333 Munich, Germany;(3) Department of Physics, Nara Medical University Kashihara, 634 Nara, Japan |
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Abstract: | The strong influence of relativity on the hyperfine interaction is demonstrated by non-, scalar andfully relativistic calculations for solid transition metal systems. By calculations of hyperfine fields andof the nuclear spin lattice relaxation rate of Ag in Ag
x
Pt1–x
it is shown that scalar relativistic calculations, which neglect the influence of spin-orbit coupling, seem to be sufficient to account for relativistic effects in many cases. To account properly for the symmetry-breaking caused by spin-orbit coupling, which is reflected by many hyperfine interaction properties, a fully relativistic approach is demanded. The corresponding formalism in the framework of the KKR-GF (Korringa-Kohn-Rostoker-Green's function) method of band structure calculation for magnetic solids is outlined. As applications results for the hyperfine fields of pure transition metals andalloys are presented. |
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