Magnetic field effect on phase-slip processes in superconducting microbridges

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Abstract We have observed the resistive regular steps in current-voltage characteristics of an indium variable-thickness microbridge in the presence of a magnetic field H near the critical temperature. From the differential resistance of steps, we obtained the H dependence of size of dissipative region, and compared it with the phase-slip model with the modified pair-breaking time and quasiparticle-diffusion length.

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