Ground State Properties of the Coupled Spin-Fermion Model in the Weak Kondo Coupling Region
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概要
- 論文の詳細を見る
Two dimensional coupled spin-fermion model as a model for high-7'. oxide is exam-ined by using the perturbation method and the spin wave approximation in the weakKondo coupling region. The logarithmic singularity appears in the fermion selfenergy. It is shown that one fermion doped into the Heisenberg spin system forms theself-trapped states of the fermion and spins. The doped many fermions remains local-ized as the self-trapped states below the critical fermion concentration. The relationto the Kondo effect is discussed. The relevance of our results to optical and photoemis-sion experiments in high-7'. o>cides is also discussed.
- 社団法人日本物理学会の論文
- 1990-05-15
著者
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Imada Masatoshi
Department Of Applied Physics University Of Tokyo
-
Furukawa Nobuo
Department Of Physics And Mathematics Aoyama Gakuin University
-
Furukawa Nobuo
Department Of Physics Faculty Of Science University Of Tokyo
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Imada Masatoshi
Department Of Physics College Of Liberal Arts University Of Saitama
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