Spin-gap effect on resistivity in the t-J model

Masaru Onoda; Ikuo Ichinose; Tetsuo Matsui

doi:10.1143/jpsj.69.3497

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Spin-gap effect on resistivity in the t-J model

Masaru Onoda·Ikuo Ichinose·Tetsuo Matsui

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Abstract

We calculate the spin-gap effect on dc resistivity in the t-J model of high-$T_{\rm c}$ cuprates by using the Ginzburg-Landau theory coupled with a gauge field as its effective field theory to get $ρ(T) \propto T \{1-c\:(T^* -T)^d \}$, where $T^*$ is the spin-gap onset temperature. By taking the compactness of massive gauge field into account, the exponent $d$ deviates from its mean-field value 1/2 and becomes a nonuniversal $T$-dependent quantity, which improves the correspondence with the experiments.

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Masaru Onoda, Ikuo Ichinose, Tetsuo Matsui. 1999-07-07. Spin-gap effect on resistivity in the t-J model. https://doi.org/10.1143/jpsj.69.3497

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