Vortex instability in molybdenum-germanium superconducting films

Article

关键词: FLUX-FLOW INSTABILITY;    II SUPERCONDUCTORS;    MIXED STATE;    TYPE-2 SUPERCONDUCTORS;    ELECTRONIC INSTABILITY;    TRANSPORT-PROPERTIES;    ABRIKOSOV VORTEX;    QUASI-PARTICLE;    MAGNETIC-FIELD;    DRIVING-FORCE;   

DOI  :  10.1103/PhysRevB.82.144517

来源: SCIE

【 摘 要 】

We studied the high driving force regime of the current-voltage transport response in the mixed state of amorphous molybdenum-germanium superconducting films to the point where the flux flow becomes unstable. The observed nonlinear response conforms with the classic Larkin-Ovchinikov picture with a quasiparticle-energy-relaxation rate dominated by the quasiparticle recombination process. The measured energy relaxation rate was found to have a magnitude and temperature dependence in agreement with theory.

【 授权许可】

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