Dynamics of conversion of supercurrents into normal currents, and vice versa

Details Dynamics of conversion of supercurrents into normal currents, and vice versa Dynamics of conversion of supercurrents into normal currents, and vice versa

2001-06-18

arxiv.org/abs/cond-mat/0106348v1

Physics

Condensed Matter

Superconductivity

8 pages, 1 figure, accepted by Phys. Rev. B

Scientific paper

10.1103/PhysRevB.64.104515

The generation and destruction of the supercurrent in a superconductor (S) between two resistive normal (N) current leads connected to a current source is computed from the source equation for the supercurrent density. This equation relates the gradient of the pair potential's phase to electron and hole wavepackets that create and destroy Cooper pairs in the N/S interfaces. Total Andreev reflection and supercurrent transmission of electrons and holes are coupled together by the phase rigidity of the non-bosonic Cooper-pair condensate. The calculations are illustrated by snapshots from a computer film.

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