The Fermi Surface of Itinerant 4f Electrons in CeNi

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概要

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• Based on the itinerant-electron model for the 4f electrons, the energy band struc-ture and the Fermi surface is calculated for the mixed-valence cerium compoundCeNi and its reference material LaNi by a self-consistent relativistic APW methodwith the exchange and correlation potential in the local-density approximation. BothCeNi and LaNi are compensated metals, and their hole and electron Fermi surfacesare multiply-connected sheets with open orbits, the direction of which is consistentwith the high-field magnetoresistance. Though they are quite different from eachother, the Fermi surfaces for CeNi and LaNi can explain reasonably well both themagnitude and the angle dependence of the de Haas-van Alphen effect frequencybranches. These theoretical results suggest that the 4f electrons may be itinerant in theground state in CeNi, as they are in CeSn..[CeNi, LaNi, band theory, 4f electrons, itinerant-electron model, relativistic ]l APW method, energy band structure, Fermi surface, open orbitl

• 社団法人日本物理学会の論文
• 1991-03-15

著者

• Hasegawa A

  Niigata Univ. Niigata

• Hasegawa A

  Department Of Applied Bioorganic Chemistry Gifu University

• YAMAGAMI Hiroshi

  Graduate School of Science, Tohoku University

• Hasegawa Akira

  College of General Education, Niigata University

• Yamagami Hiroshi

  Graduate School Of Science And Technology Niiigata University

• Yamagami Hiroshi

  Graduate School Of Science And Technology Niigata University

• Hasegawa Akira

  College Of Engineering Chiba University

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