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Triplet Superconducting Pairing and Density-Wave Instabilities in Organic Conductors

J. C. Nickel, R. Duprat, C. Bourbonnais, N. Dupuis

DOI 10.1103/PhysRevLett.95.247001 · Physical Review Letters

T1

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Abstract

Using a renormalization group approach, we determine the phase diagram of an extended quasi-one-dimensional electron gas model that includes interchain hopping, nesting deviations, and both intrachain and interchain repulsive interactions. We find a close proximity of spin-density- and charge-density-wave phases and singlet d-wave and triplet f-wave superconducting phases. There is a striking correspondence between our results and recent puzzling experimental findings in the Bechgaard salts, including the coexistence of spin-density-wave and charge-density-wave phases and the possibility of a triplet pairing in the superconducting phase.

Source-reported materials — not catalogue approval

FormulaReported Tc (K)Pressure (GPa)Type
(TMTSF)2X

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1.2Pressure not reportedunknown
(TMTSF)2ClO4

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Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.

—Pressure not reportedunknown

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