Quasiparticle Interactions for f^2-Impurity Anderson Model with Crystalline-Electric-Field : Numerical Renormalization Group Study(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)

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概要

• 論文の詳細を見る

• The aspect of the quasiparticle interaction of a local Fermi liquid, the impurity version of f^2-based heavy fermions, is studied by the Wilson numerical renormalization group method. In particular, the case of the f^2-singlet crystalline-electric-field ground state is investigated assuming the case of UPt_3 with the hexagonal symmetry. It is found that the interorbital interaction becomes larger than the intraorbital one in contrast to the case of the bare Coulomb interaction for the parameters relevant to UPt_3. This result offers us a basis to construct a microscopic theory of the superconductivity of UPt_3 where the interorbital interactions are expected to play important roles.

• 社団法人日本物理学会の論文
• 2005-03-15

著者

• HATTORI Kazumasa

  Division of Materials Physics, Department of Materials Engineering Science, Graduate School of Engin

• Miyake Kazumasa

  Division Of Endocrine Surgery Kawasaki Medical School.

• Yotsuhashi S

  Osaka Univ. Osaka

• YOTSUHASHI Satoshi

  Correlated Electron Research Center, the National Institute of Advanced Industrial Science and Techn

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