Apparent Destruction of Superconductivity in the Disordered One-Dimensional Limit

J. M. Graybeal; P. M. Mankiewich; R. C. Dynes; M. R. Beasley

doi:10.1103/PhysRevLett.59.2697

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Apparent Destruction of Superconductivity in the Disordered One-Dimensional Limit

J. M. Graybeal, P. M. Mankiewich, R. C. Dynes, M. R. Beasley

DOI 10.1103/PhysRevLett.59.2697 · Physical Review Letters

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Abstract

We present the results of a model-system study of the competition between superconductivity and disorder in narrow superconducting wires. As one moves from the two-dimensional regime toward the one-dimensional limit, large and systematic reductions in the superconducting transition temperature are obtained. The observed behavior extrapolates to the total destruction of superconductivity in the disordered one-dimensional limit. Our findings are in clear disagreement with a recent theoretical treatment. In addition, the superconducting fluctuations appear to be modified by disorder for the narrowest samples.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Mo0.8Ge0.2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	4.5	Pressure not reported	midpoint