A new model for the resistance anomaly in mesoscopic superconducting wires
Ju-Jin Kim; Jinhee Kim; Hyon Joon Shin; Hu Jong Lee; Seongjae Lee; Kyoung Wan Park; El-Hang Lee; Ju-Jin Kim; Dept. of Phys., Pohang Inst. of Sci. & Technol., South Korea; Jinhee Kim; Dept. of Phys., Pohang Inst. of Sci. & Technol., South Korea; Hyon Joon Shin; Dept. of Phys., Pohang Inst. of Sci. & Technol., South Korea; Hu Jong Lee; Dept. of Phys., Pohang Inst. of Sci. & Technol., South Korea; Seongjae Lee; Dept. of Phys., Pohang Inst. of Sci. & Technol., South Korea; Kyoung Wan Park; Dept. of Phys., Pohang Inst. of Sci. & Technol., South Korea; El-Hang Lee; Dept. of Phys., Pohang Inst. of Sci. & Technol., South Korea
Журнал:
Journal of Physics: Condensed Matter
Дата:
1994-08-29
Аннотация:
We propose a model that provides, for the first time, a quantitative explanation for the anomalous resistance peak in the superconducting transition of mesoscopic metal wires and loops. We assume a normal-current path in parallel with a normal-superconducting-normal quasi-particle tunnel barrier forming at the node area of the dangling voltage probes. The model allows a quantitative fit to the dependence of the resistance anomaly on the external parameters, such as temperature, bias current, and an external magnetic field.
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