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Effect of Inter-Site Repulsions on Magnetic Susceptibility of One-Dimensional Electron Systems at Quarter-Filling

Yuki Fuseya·Masahisa Tsuchiizu·Yoshikazu Suzumura·Claude Bourbonnais
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Abstract

The temperature dependence of the magnetic susceptibility, χ(T), is investigated for one-dimensional interacting electron systems at quarter-filling within the Kadanoff-Wilson renormalization-group method. The forward scattering on the same branch (the g_4-process) is examined together with the backward (g_1) and forward (g_2) scattering amplitudes on opposite branches. In connection with lattice models, we show that χ(T) is strongly enhanced by the nearest-neighbor interaction, an enhancement that surpasses one of the next-nearest-neighbor interaction. A connection between our predictions for χ(T) and experimental results for χ(T) in quasi-one-dimensional organic conductors is presented.

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Yuki Fuseya, Masahisa Tsuchiizu, Yoshikazu Suzumura, Claude Bourbonnais. 2005-10-07. Effect of Inter-Site Repulsions on Magnetic Susceptibility of One-Dimensional Electron Systems at Quarter-Filling. https://doi.org/10.1143/jpsj.74.3159

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