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

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Bibliographic Information

Published
2005
DOI
  • 10.1143/jpsj.74.3159
  • 10.48550/arxiv.cond-mat/0510164
Publisher
THE PHYSICAL SOCIETY OF JAPAN

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Description

The temperature dependence of 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 g4-process) is examined together with the backward (g1) and forward (g2) 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 which surpasses that 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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