Resistance anomaly near the superconducting transition temperature in short aluminum wires
- 29 April 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 66 (17), 2254-2257
- https://doi.org/10.1103/physrevlett.66.2254
Abstract
We report a systematic experimental study of the superconducting resistive transition in one-dimensional Al wires of length 0.6 to 110 μm. Shorter wires show a peak in resistance as a function of temperature near , with a value above the normal-state resistance. Near the peak, the resistance decreases sharply in a magnetic field of only a few Oe. In the same regime, the current-voltage characteristic resembles that of a superconductor-insulator-normal tunnel junction. These new results may be a manifestation of coherent effects in small superconducting samples.
Keywords
This publication has 23 references indexed in Scilit:
- Onset of superconductivity in ultrathin granular metal filmsPhysical Review B, 1989
- Evidence for Macroscopic Quantum Tunneling in One-Dimensional SuperconductorsPhysical Review Letters, 1988
- Localization, superconducting fluctuations, and superconductivity in thin films and narrow wires of aluminumPhysical Review B, 1987
- Critical current of thin superconducting wire with side branchesPhysical Review B, 1985
- Pair-breaking model for disorder in two-dimensional superconductorsPhysical Review B, 1984
- Transition from metallic to tunneling regimes in superconducting microconstrictions: Excess current, charge imbalance, and supercurrent conversionPhysical Review B, 1982
- Voltage Measurements within the Nonequilibrium Region near Phase-Slip CentersPhysical Review Letters, 1977
- Fluctuation-Induced Conductivity of a One-Dimensional, Nearly Ideal BCS SuperconductorPhysical Review Letters, 1971
- Onset of Quantized Thermal Fluctuations in "One-Dimensional" SuperconductorsPhysical Review Letters, 1970
- Fluxoid Quantization in a Multiply-Connected SuperconductorPhysical Review B, 1964