Phase transition in the one-dimensional Kondo lattice model with attractive electron-electron interaction
نویسندگان
چکیده
منابع مشابه
Quantum phase transition in one dimensional extended Kondo lattice model away from half filling
We study one dimensional extended Kondo lattice model, described by the t − J Hamiltonian for conduction electrons away from half filling and the Heisenberg Hamiltonian for localized spins at half filling. Following Shankar,[1] we find an effective field theory for this model, where doped holes are represented by massless Dirac fermions (holons) and spin excitations are fractionalized into rela...
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We study a multichannel one-dimensional (1D) supersymmetric t−J model with an added magnetic impurity of arbitrary spin S. The antiferromagnetic impurity-electron interaction is chosen so as to preserve integrability, allowing for an exact diagonalization of the model by a Bethe Ansatz. The solution reveals that interactions in the bulk make the magnetic impurity drive both spin and charge fluc...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 1997
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.56.11084