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- Kasuya Tadao
- Physics Department, Tohoku University, Sendai 980–77
書誌事項
- タイトル別名
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- Mass Reduction in Low Carrier Density S
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The cyclotron masses observed by the de Haas-van Alphen effect in semimetallic LaSb and particularly in small flat pockets in LaB6, are substantially smaller than those evaluated by band calculations. As a common mechanism for low-carrier-density-systems, the mass reduction mechanism by the exchange interaction was first studied for an electron gas based on a simple model including Wigner crystal type screening. This model reproduces the result of high-density expansion and extends the result to the much lower density region of the Wigner liquid. The model was applied to the band electrons by dividing the band state into a plane wave part and a core part within a muffin-tin-sphere. It is shown that the mass reduction effect is enhanced particularly in the case of a small Fermi surface with strong anisotropy, which is in good agreement with the results obtained for the above materials.
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 65 (8), 2357-2360, 1996
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
- 1390001204180070784
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- NII論文ID
- 110001977914
- 210000099486
- 130004535866
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- NII書誌ID
- AA00704814
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- BIBCODE
- 1996JPSJ...65.2357K
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 4030999
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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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- 使用不可