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Article overview
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Excess magneto-resistance in multiband superconductors due to the viscous flow of composite vortices | | Artjom Vargunin
; Mihail Silaev
; Egor Babaev
; | | Date: |
24 Jun 2016 | | Abstract: | By using the time-dependent Ginzburg-Landau theory, we show that extremely
diverse experimental data on flux-flow resistivity in multiband superconductors
can be qualitatively explained by a composite nature of Abrikosov vortices
consisting of elementary fractional vortices in different bands. In composite
vortices, the ratio of a core size to electric field relaxation length is found
to vary in wide limits depending on system parameters. As a result, the
flux-flow magneto-resistance can strongly exceed the single-component
Bardeen-Stephen estimation provided that moving vortices generate electric
field stretching strongly outside the vortex cores. | | Source: | arXiv, 1606.7758 | | Services: | Forum | Review | PDF | Favorites | |
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