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Electric field in type II superconductors

J. Kolacek, P. Lipavsky, V. Spicka

cond-mat.supr-conarXiv:cond-mat/9911283

Abstract

Generally it is accepted that electric field E in type II superconductors is created by the vortex motion, so that it is proportional to the vortex velocity vL. This assertion is based on the Josephson relation E = - vL x B, which was derived and is valid if no transport current is present. We present arguments showing that if transport current is present, static electric field is proportional to the relative velocity of vortices in respect to the velocity of superconducting fluid vs, so that in this case generalised Josephson relation E = vs - vL x B is valid.

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