Roles of Excess Atoms in Electronic and Magnetic Properties of Fe_2+<i>x</i>V_1-<i>x</i>Z (Z = Al, Ga)

• Fujii Shinpei

  Department of Physics, Faculty of Science, Kagoshima University

• Ienaga Youichi

  Department of Physics, Faculty of Science, Kagoshima University

• Ishida Shoji

  Department of Physics, Faculty of Science, Kagoshima University

• Asano Setsuro

  Institute of Physics, College of Arts and Sciences, University of Tokyo

書誌事項

タイトル別名

• Roles of Excess Atoms in Electronic and Magnetic Properties of Fe2+xV1-xZ (Z=Al, Ga).

抄録

To expand our knowledge of Fe_2+xV_1−xZ (Z = Al, Ga), band calculations (LMTO-ASA) have been performed for several x values (x=0,±0.125,±0.25) with a supercell method. Obtained density of states and magnetic moments indicate that excess atoms, which are introduced instead of the original Fe or V atom in Fe₂VZ, bring a drastic change in electronic and magnetic properties of Fe₂VZ. The existence of those atoms causes the collapse of the gap (or pseudogap) and the change from nonmagnetic to magnetic states. In the magnetic state, those atoms carry 2.5–2.6μ_B for x>0 and 0.7–1.1μ_B for x<0.

収録刊行物

• Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ

  Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ 72 (3), 698-704, 2003

  一般社団法人 日本物理学会

キーワード

• density of states
• LMTO-ASA
• Heusler alloy
• Fe<SUB>2</SUB>VAl
• Fe<SUB>2</SUB>VGa
• off-stoichiometry

詳細情報

• CRID: 1390282679159452288
• NII論文ID: 210000104696
• NII論文ID: 110001974279
• NII書誌ID: AA00704814
• DOI: 10.1143/jpsj.72.698
• BIBCODE: 2003JPSJ...72..698F
• ISSN: 13474073
• ISSN: 00319015
• NDL書誌ID: 6479808
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6479808
• Web Site: http://journals.jps.jp/doi/pdf/10.1143/JPSJ.72.698
• 本文言語コード: en
• データソース種別:
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