Dynamics of conversion of supercurrents into normal currents and vice versa

Article

关键词: JOSEPHSON CURRENTS;    ANDREEV SCATTERING;    CHARGE-TRANSPORT;    PHASE-BOUNDARY;    CURRENT FLOW;    ENERGY;    REFLECTIONS;    PROXIMITY;   

DOI  :  10.1103/PhysRevB.64.104515

来源: SCIE

【 摘 要 】

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 wave packets 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 nonbosonic Cooper-pair condensate. The calculations are illustrated by snapshots from a computer movie.

【 授权许可】

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