Calculations of Fermi Surfaces and Enhanced Electronic Specific-Heat Coefficients in Cubic Laves-Phase Ce Compounds

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概要

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• We have perfornaed calctrlations of Ferzaai surfaces f'or ctrbic Laves-phase heavy fernaion COIII-potrnds C(lllC02, CeRhx and CeRtrz, and enhanced electronic specific-heat coefficients y.?. (i.e.,IIIQSS enhancement factor), in which many-body effects are taken into accotrnt. The calculatedFermi strrfaces of CeCo3 atnd CeRtrz are in good agreettaent with the dHvA uaaeasurenaents. Onthe other hand, the restmlts for CeRh,z hardly show satisfactory explanations for the rneasture-naents. Then, we have calctrlated enhancertaent factors 'y for density of states of ./-electrons tnsinga method of perturbation expansion with respect to electron-electron interactions based on Fernailiqtrid theory. The valtres of y.?.. calculated by using 5 reprodtrce well the experiztaental valuesfor CClCO2 and Cecum.

• 社団法人日本物理学会の論文
• 1998-04-15

著者

• HARIMA Hisatomo

  Department of Physics, Faculty of Science, Kobe University

• TANAKA Shingo

  Department of Organic & Polymeric Materials, Tokyo Institute of Technology

• YANASE Akira

  Department of Materials Science, University of Osaka Prefecture

• Harima Hisatomo

  Department Of Condensed Matter Physics The Institute Of Scientific And Industrial Research Osaka Uni

• Harima Hisatomo

  Department Of Materials Science College Of Integrated Arts And Sciences Osaka Prefecture University

• Yanase Akira

  Department Of Condensed Matter Physics The Institute Of Scientific And Industrial Research Osaka Uni

• Yanase Akira

  Department Of Materials Science College Of Integrated Arts And Sciences Osaka Prefecture University

• Tanaka Shingo

  Department Of Materials Science College Of Integrated Arts And Sciences Osaka Prefecture University

• Tanaka Shingo

  Department Of Biological Science And Technology Faculty Of Engineering The University Of Tokushima

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