Effects of randomness on the critical temperature in quasi-two-dimensional organic superconductors

Abstract

The effects of non-magnetic disorder on the critical temperature T_c of organic weak-linked layered superconductors with singlet in-plane pairing are considered. A randomness in the interlayer Josephson coupling is shown to destroy phase coherence between the layers and T_c suppresses smoothly in a large extent of the disorder strength. Nevertheless the disorder of arbitrarily high strength can not destroy completely the superconducting phase. The obtained quasi-linear decrease of the critical temperature with increasing disorder strength is in good agreement with experimental measurements.

5 pages, 2 figures

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• The effect of irradiation-induced disorder on the conductivity and critical temperature of the organic superconductor $\kappa$-(BEDT-TTF)${}_2$Cu(SCN)${}_2$
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Cited by in corpus (2)

• Anomalous superfluid density in a disordered charge density wave material: Pd-intercalated ErTe${}_3$
• Nanoscience Perspective on Disorder Modifications of Superconducting Critical Temperature