1993/07/05 by F. Guinea, Guinea, F., Yu. Pogorelov +1
Physics and Astronomy · #Condensed Matter (cond-mat) #FOS: Physical sciences #cond-mat
paper · pdf · doi:10.48550/arxiv.cond-mat/9307006
8 pages (RevTex). 1 figure by resquest
arxiv created 1993/07/05 · arxiv updated 2009/11/30
In superconductors where the coherence length is comparable to the Fermi wavelength, the electronic levels within a vortex core are quantized, and separated by energies of the order of the superconducting gap. The absence of a continuum modifies significantly the energy dissipation due to the motion of vortices. At zero temperature, dissipation is suppressed, and the system shows non ohmic behavior. The I-V characteristics show two distinct regimes. Below a given electric field, I is strongly dependent on V. Flux flow resistivity also shows a marked dependence on temperature, and reaches conventional values near Tc.