Fermi Surface Properties in CeCo_2

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概要

• 論文の詳細を見る

• We have succeeded in oberving the de Haas-van Alphen (dHvA) effect in the mixed valentsuperconductor CeCor. The detected dHvA freqtrencies range from 6.24 x 10' Oe to 8.77 x 10" Oe.The largest frequency branch shows almost no angular dependence, indicating a nearly sphericalFermi strrface, The cyclotron efl'ective masses are found to be highly enhanced conupared to thefree-electron mass rno, ranging from 0.97 mo to 10.9 rno. The magnetoresistance measurementsgives an evidence that the Fermi surface sheets are all closed without any open orbits. Bandstructure calculation based on a relativistic linear augmented-plane-wave (RLAPW) method,assurnung the 'if electrons as itinerant, is in reasonably good agreenaent with the experimentaldHvA results.

• 社団法人日本物理学会の論文
• 1996-06-15

著者

• SUGAWARA Hitoshi

  Faculty of Integrated Arts and Sciences, The University of Tokushima

• ONUKI Yoshichika

  Advanced Science Research Center, Japan Atomic Energy Research Institute

• HASEGAWA Akira

  Faculty of Engineering Science, Osaka University

• AOKI Yuji

  Faculty of Science,Hiroshima University

• SETTAI Rikio

  Faculty of Science, Osaka University

• Inoue O

  Division Of Health Sciences Graduate School Of Medicine Osaka University

• Inoue O

  Central Research Laboratory Matsushita Electric Industrial Co. Ltd.

• Hasegawa A

  Niigata Univ. Niigata

• Hasegawa A

  Department Of Applied Bioorganic Chemistry Gifu University

• Higuchi Masahiko

  Advanced Science Research Center, Japan Atomic Energy Research Institute

• Aoki Yuji

  Faculty Of Integrated Arts And Sciences

• Sugawara Hitoshi

  Faculty Of Engineering Iwate University

• Higuchi Masahiko

  Advanced Science Research Center Japan Atomic Energy Research Institute

• Sato Hideyuki

  Faculty of Science, Tokyo Metropolitan University

• Matsui Hiroshi

  Graduate School Of Science Osaka University

• INOUE Osamu

  Faculty of Science,Tokyo Metropolitan University

• NISHIGAKI Tsuguhito

  Faculty of Science,Tokyo Metropolitan University

• INOUE Osamu

  Division of Health Sciences, Graduate School of Medicine, Osaka University

• Inoue O

  Tohoku Rosai Hospital

• Nishigaki Tsuguhito

  Faculty Of Science Tokyo Metropolitan University

• Hasegawa Akira

  Faculty Of Engineering Science Osaka University

• ONUKI Yoshichika

  Advanced Science Research Center, Japan Atomic Energy Agency:Department of Physics, Graduate School of Science, Osaka University

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