Single-Site Functional-Integral Approach to Itinerant-Electron Ferromagnetism
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- Hasegawa Hideo
- Institute for Solid State Physics, University of Tokyo
書誌事項
- タイトル別名
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- Single Site Functional Integral Approac
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Itinerant-electron ferromagnetism at finite temperatures is discussed by using the functional-integral method with two fields within the static and saddle-point approximations combined with the single-site approximation; a single atom of a pure metal is regarded as an impurity embedded in the host which is treated by a kind of the alloy-analogy approximation. The amplitude of the local magnetic moment is shown to have a weak temperature dependence and to remain finite even in the paramagnetic state, where the spin susceptibility obeys an approximate Curie-Weiss law. Numerical calculations are made with the use of a simplified model for the density of states of bcc transition metals. Calculated results are discussed with reference to experimental data of iron.
収録刊行物
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 46 (5), 1504-1514, 1979
一般社団法人 日本物理学会
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詳細情報 詳細情報について
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- CRID
- 1390001204189254272
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- NII論文ID
- 210000087798
- 110001975565
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- NII書誌ID
- AA00704814
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- BIBCODE
- 1979JPSJ...46.1504H
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- COI
- 1:CAS:528:DyaE1MXks1Onu74%3D
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 2050845
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可