Fermi Surface of LaRu_<b>2</b>Ge_<b>2</b>and CeRu_<b>2</b>Ge_<b>2</b>within Local-Density Band Theory

• Yamagami Hiroshi

  Department of Physics, Faculty of Sciences, Tohoku University, Sendai 980

• Hasegawa Akira

  College of General Education, Niigata University, Niigata 950–21

書誌事項

タイトル別名

• Fermi Surface of LaRu2Ge2 and CeRu2Ge2 within Local-Density Band Theory.
• Fermi Surface of LaRu2Ge2 and CeRu2Ge2

抄録

We derive the Fermi surface for LaRu₂Ge₂ by a self-consistent relativistic APW method within the framework of a local-density approximation.The Fermi surfaces thus obtained are composed of four hole sheets and an electron sheet, all of which have no open orbits. The Fermi surface topology is consistent with the experimental results for the high-field transverse magnetoresistance. These Fermi surfaces explain reasonably well the absolute magnitude and the angular dependence of the de Haas-van Alphen (dHvA) frequency-branches. Moreover, we use the theoretical Fermi surface of LaRu₂Ge₂ to re-examine an origin of the dHvA frequency-branches for a ferromagnetic CeRu₂Ge₂ regarded as non-Kondo-lattice system.

収録刊行物

• Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ

  Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ 63 (6), 2290-2302, 1994

  一般社団法人 日本物理学会

キーワード

• LaRu<SUB>2</SUB>Ge<SUB>2</SUB>
• CeRu<SUB>2</SUB>Ge<SUB>2</SUB>
• local-density approximation
• self-consistent relativistic APW method
• energy band structure
• Fermi surface

詳細情報

• CRID: 1390282679157083776
• NII論文ID: 110001956540
• NII論文ID: 130004535089
• NII論文ID: 210000098089
• NII書誌ID: AA00704814
• DOI: 10.1143/jpsj.63.2290
• BIBCODE: 1994JPSJ...63.2290Y
• ISSN: 13474073
• ISSN: 00319015
• NDL書誌ID: 3888687
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3888687
• Web Site: http://journals.jps.jp/doi/pdf/10.1143/JPSJ.63.2290
• 本文言語コード: en
• データソース種別:
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