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Accurate Computation of the Magnetic Susceptibility for the Normal Phase of Organic Conductors

S. Moukouri
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Abstract

The magnetic susceptibility of the quarter-filled one-dimensional extended Hubbard model is calculated using the density-matrix renormalization group technique. It is found that in the charge gap regime of the model ($U> 4t $ and $V > 2t$), or in the metallic region with important superconductive fluctuations ($U<4t$ and $V>2t$), $χ(T)$ displays a singularity at T=0 and an inflection point at low temperatures that are similar to what occurs in the spin-half quantum spin chain. These results, whose accuracy outdoes that of any other available technique, are useful data which allow a comparison between theory and experiment in the normal phase of the organic conductors.

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S. Moukouri. 2000-11-09. Accurate Computation of the Magnetic Susceptibility for the Normal Phase of Organic Conductors. https://arxiv.org/abs/cond-mat/0011169

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