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Flux flow resistivity in the two-gap superconductivity

Jun Goryo·Hiroshi Matsukawa
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Abstract

We investigate the flux flow state in a two-gap superconductor in which two s-wave gaps with different amplitudes exist on two separate Fermi surfaces. The flux flow resistivity is obtained on the basis of the Bardeen-Stephen relation and the result agrees well with the anomalous field dependence of the flow resistivity recently observed in the two-gap superconductor MgB2. Some typical properties of the vortex in this system are also discussed.

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Jun Goryo, Hiroshi Matsukawa. 2005-03-11. Flux flow resistivity in the two-gap superconductivity. https://doi.org/10.1143/jpsj.74.1394

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