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Calculations of Spin-Wave Energy Gap in Transition Metals

Published online by Cambridge University Press:  25 February 2011

V.P. Antropov  and
A.I. Liechtenstein
V.P. Antropov
Affiliation:
Max-Planck-Institut für Festkörperforschung Heisenbergstr. 1, D-7000 Stuttgart 80, FRG
A.I. Liechtenstein
Affiliation:
Max-Planck-Institut für Festkörperforschung Heisenbergstr. 1, D-7000 Stuttgart 80, FRG
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Abstract

Analytical expressions for the total energy derivative with respect to the magnetic moment rotations have been derived in the relativistic local-spin density functional approach and multiple scattering theory. The spin-wave stiffness constant as well as the gap in the spin-wave spectrum due to relativistic anisotropy effects is calculated in KKR-ASA approximation for bcc Fe. This is compared with other theoretical calculations and available experimental data.

Keywords

Total energyEnergy gap in spin-wave spectrumLocal-force theoremMagnetic anisotropyExchange interactions
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 253: Symposium V – Application of Multiple Scattering Theory to Materials Science , 1991 , 325
Copyright
Copyright © Materials Research Society 1992

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References

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