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

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.

arXiv comment4 pages, 4 figures, to be published in Journal of the Physical Society of Japan, vol. 74, No. 12

References in corpus (3)

• Susceptibility of the Spin 1/2 Heisenberg Antiferromagnetic Chain
• Effects of Next-Nearest-Neighbor Repulsion on One-Dimensional Quarter-Filled Electron Systems
• Spin susceptibility of interacting electrons in one dimension: Luttinger liquid and lattice effects

Cited by in corpus (4)

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• Role of Interchain Hopping in the Magnetic Susceptibility of Quasi-One-Dimensional Electron Systems
• Mechanism for the Singlet to Triplet Superconductivity Crossover in Quasi-One-Dimensional Organic Conductors
• Finite-Temperature Properties across the Charge Ordering Transition -- Combined Bosonization, Renormalization Group, and Numerical Methods