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Suppression of superconductivity by non-magnetic disorder in the organic superconductor (TMTSF)2(ClO4)(1-x)(ReO4)x

Nada Joo·Pascale Auban-Senzier·Claude Pasquier·Philippe Monod·Denis Jerome·Klaus Bechgaard
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Abstract

We present a study of the superconducting properties (Tc and Hc2) in the solid solution (TMTSF)2(ClO4)(1-x)(ReO4)x with a ReO-4 nominal concentration up to x = 6%. The dramatic suppression of Tc when the residual resistivity is increased upon alloying with no modification of the Fermi surface is the signature of non-conventional superconductivity . This behaviour strongly supports p or d wave pairing in quasi one dimensional organic superconductors. The determination of the electron lifetime in the normal state at low temperature confirms that a single particle Drude model is unable to explain the temperature dependence of the conductivity and that a very narrow zero frequency mode must be taken into account for the interpretation of the transport properties.

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Nada Joo, Pascale Auban-Senzier, Claude Pasquier, Philippe Monod, Denis Jerome, Klaus Bechgaard. 2004-09-16. Suppression of superconductivity by non-magnetic disorder in the organic superconductor (TMTSF)2(ClO4)(1-x)(ReO4)x. https://doi.org/10.1140/epjb%2Fe2004-00236-4

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