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Interplay between spin-density-wave and superconducting states in quasi-one-dimensional conductors

Raphael Duprat·C. Bourbonnais
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Abstract

The interference between spin-density-wave and superconducting instabilities in quasi-one-dimensional correlated metals is analyzed using the renormalization group method. At the one-loop level, we show how the interference leads to a continuous crossover from a spin-density-wave state to unconventional superconductivity when deviations from perfect nesting of the Fermi surface exceed a critical value. Singlet pairing between electrons on neighboring stacks is found to be the most favorable symmetry for superconductivity. The consequences of non uniform spin-density-wave pairing on the structure of phase diagram within the crossover region is also discussed.

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Raphael Duprat, C. Bourbonnais. 2001-02-07. Interplay between spin-density-wave and superconducting states in quasi-one-dimensional conductors. https://doi.org/10.1007/s100510170198

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