Physics – Condensed Matter – Superconductivity
Scientific paper
2004-01-22
European Physical Journal B 40 (2004) 43
Physics
Condensed Matter
Superconductivity
Received 26 January 2004 / Received in final form 17 June 2004 / Published online 3 August 2004
Scientific paper
10.1140/epjb/e2004-00236-4
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.
Auban-Senzier Pascale
Bechgaard Klaus
Jerome Denis
Joo Nada
Monod Philippe
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