Critical Study of the Anderson Impurity and the Anderson Lattice

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概要

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• We study critically the properties of the infinite-& degenerate impurity Andersonmodel and lattice Anderson model using the bosonic technique with the help of theFeynman diagrammatic expansion developed earlier by P. Coleman. We investigatetheir thermal and / or dynamical properties over the whole temperature range employ-ing the expansion in power of the inverse of the spin-orbit degeneracy. In the impu-rity model, the most and the next dominant terms in the expansion turn out todescribe the low and the high temperature behaviors correctly. As regards the latticemodel we calculate the life time of the conduction electrons and find that all the termsto the third dominant order must be taken into account to describe both of the Fermi-liquid behavior at low temperature and the Kondo-impurity-type behavior at hightemperature correctly.

• 社団法人日本物理学会の論文
• 1988-05-15

著者

• Jin Biao

  Physics Department Nagoya University

• Kuroda Yoshihiro

  Physics Department Nagoya University

関連論文

• On the 1/N-Expansion Studies of Infinite-U Anderson Models
• Rigorous Study of Dynamical Properties of Degenerate Impurity Anderson Model
• Electronic States in High-T_c Copper-Oxide Superconductors. II
• Critical Study of the Anderson Impurity and the Anderson Lattice
• Comments on the Theory of the Metal-Insulator Transitions in the Mixed-Valent Systems

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