Fixed Point of the Spin-Fermion Model Doped with a Single Fermion
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概要
- 論文の詳細を見る
Spin-fermion model on a square lattice is investig;tied in the perturbation expansion in terms of the spin-fermion Kondo coupling. The fermion self-energy iscalculated in a self-consistent treatment by a domirtant pole approximation. Thequasi-particle excitation of a doped fermion turns out to be totally mncoherent. It sug-gests that the low energy excitations should be described by the bound state of a fer-mion and spins as a collective mode and imply that the fixed point of the spin-fermionmodel with a single fermion is the t-J model. It also suggests the spin-charge separalion of the low energy excitations in the light doping region of these two models.
- 社団法人日本物理学会の論文
- 1992-06-15
著者
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Imada Masatoshi
Institute For Solid State Physics University Of Tokyo
-
Furukawa Nobuo
Institute For Sokid State Physics University Of Tokyo
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Imada Masatoshi
Institute For Solid State Physics The University Of Tokyo
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