Bosonization approach to the one-dimensional Kondo lattice model

Details Bosonization approach to the one-dimensional Kondo lattice model Bosonization approach to the one-dimensional Kondo lattice model

1994-10-18

arxiv.org/abs/cond-mat/9410059v1

Physics

Condensed Matter

11 page, YITP/K-1085

Scientific paper

10.1143/JPSJ.63.4322

The one-dimensional Kondo lattice model is investigated by using bosonization techniques and conformal field theory. In the half-filled band, the charge and spin gaps open for the anti-ferromagnetic Kondo coupling. Away from half-filling, the paramagnetic metallic state is characterized by the fixed point of Tomonaga-Luttinger liquid with the {\it large} Fermi surface in accordance with known results. It is suggested that as the electron density approaches half-filling, both of spin and charge susceptibilities may show a divergence property.

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