Bosonization theory of the One Dimensional Coupled Spin-Fermion Model
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概要
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The low temperature properties of the one dimensional coupled spin-fermionmodel, whose two dimensional counterpart describes the Cu-0 plane of the high T.superconductors, are investigated by the bosonization method. 'I'he fermion part is described by the Hubbard model and the spin part by the antiferromagnetic Heisenbergmodel. The Kondo coupling is ?tssumed between the spins and the fermions. The lowtemperature behavior of the response functions of SDW, CDW, singlet and tripletsuperconductivity and antiferromagnetism are studied. The SDW or CDW responsefunctions are found to be the most divergent depending on the parameters. There ex-ists a physically accessible parameter regime in which the triplet superconductivityresponse function is second divergent. The antiferromagnetism is also shown to besuppressed by the Kondo coupling.
- 社団法人日本物理学会の論文
- 1990-02-15
著者
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Hida Kazuo
Department Of Physics Faculty Of Science Saitama University
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Hida Kazuo
Department Of Engineering Science Faculty Of Engineering Hokkaido University
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