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Bosonization approach to the one-dimensional Kondo lattice model

S. Fujimoto·N. Kawakami
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Abstract

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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S. Fujimoto, N. Kawakami. 1994-10-18. Bosonization approach to the one-dimensional Kondo lattice model. https://doi.org/10.1143/jpsj.63.4322

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