Perturbative Calculation of the Spin-Wave Dispersion in a Disordered Double-Exchange Model
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- Semba Taeko
- Department of Mathematical Sciences, Ibaraki University
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- Fukui Takahiro
- Department of Mathematical Sciences, Ibaraki University
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Abstract
We study the spin-wave dispersion of localized spins in a disordered double-exchange model using the perturbation theory with respect to the strength of the disorder potential. We calculate the dispersion up to the next-leading order, and extensively examine the case of one dimension. We show that in that case, disorder yields anomalous gap-like behavior at the Fermi wave number of the conduction electrons.
Journal
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 73 (10), 2646-2649, 2004
THE PHYSICAL SOCIETY OF JAPAN
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Details 詳細情報について
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- CRID
- 1390001204188489600
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- NII Article ID
- 210000105063
- 110001979184
- 130004538572
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- NII Book ID
- AA00704814
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- BIBCODE
- 2004JPSJ...73.2646S
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- ISSN
- 13474073
- 00319015
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- NDL BIB ID
- 7120883
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed