Electronic Structure and Fermi Surface of NpGe_3(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
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概要
- 論文の詳細を見る
Fermi surface topology of transuranium compound NpGe_3 is investigated from an itinerant 5f picture with a relativistic band calculation in a local-density approximation (LDA), thereby analyzing the frequency branches observed by the de Haas-van Alphen (dHvA) effect. The Fermi surface volume of NpGe_3 is sensitive to the lattice constant because of its special shape. A LDA equilibrium lattice constant of NpGe_3 is determined from total-energy minimization as a function of lattice constant under the AuCu_3-type crystal structure. The Fermi surface obtained at the LDA equilibrium can explain precisely the origin of all the dHvA frequency branches like the familiar Fermi surface of Cu. This suggests that the fermiology of Np compounds should progress on the 5f band scheme, though Np-5f electrons are more localized than those of a lighter actinide atom.
- 社団法人日本物理学会の論文
- 2006-02-15
著者
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YAMAGAMI Hiroshi
Department of Physics, Faculty of Science, Kyoto Sangyo University
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Yamagami Hiroshi
Department Of Neurology Stroke Center Kobe City Medical Center General Hospital
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Yamagami Hiroshi
Department Of Physics Faculty Of Science Kyoto Sangyo University
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