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Title variants
Languages of publication
Abstracts
The Heisenberg model cannot uncritically be applied to itinerant-electron magnets, including those that show non-collinear order. Density functional theory is therefore generalized to apply to non-collinear itinerant-electron magnets. The appropriate Kohn-Sham equations are discussed and the total energy of spiral magnetic order is used to determine the magnon spectrum in the adiabatic approximation. The energy spectrum of transverse spin fluctuations can also be estimated with the total energy of spiral magnetic order and allows a determination of thermal properties of itinerant-electron magnets. Calculated results for Fe, Co, Ni, and FeCo are discussed and compared with experimental results.
Discipline
- 75.30.Ds: Spin waves(for spin-wave resonance, see 76.50.+g)
- 75.10.Lp: Band and itinerant models
- 71.15.Mb: Density functional theory, local density approximation, gradient and other corrections
- 75.30.Kz: Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.)(for ferroelectric phase transitions, see 77.80.B-; for superconductivity phase diagrams, see 74.25.Dw)
Journal
Year
Volume
Issue
Pages
165-173
Physical description
Dates
published
2000-01
Contributors
author
- Darmstadt University of Technology, Institute of Solid State Physics, 64289 Darmstadt, Germany
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv97z116kz
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