Enhanced vortex damping by eddy currents in superconductor-semiconduc tor hybrids

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dc.creatorGoni, M. Danckwerts A. R.
dc.creatorThomsen, C.
dc.creatorEberl, K.
dc.creatorRojo, A. G.
dc.date2000-01-10
dc.date.accessioned2026-07-07T02:36:31Z
dc.date.available2026-07-07T02:36:31Z
dc.descriptionAn enhancement of vortex-motion damping in thin Pb/In superconducting films is obtained through coupling to an adjacent two-dimensional electron gas formed in a modulation-doped GaAs/AlGaAs heterostructure. This effect is observed by monitoring the power dissipation at the superconductor in the vortex state while increasing the density of the electron gas using a gate voltage. Quantitative agreement is found with calculations based on a viscous model of vortex damping which considers generation of eddy currents in the electron gas by moving flux lines. In the regime of filamentary and channel vortex flow, eddy-current damping leads to striking dissipation breakdown due to stopping of entire vortex channels.
dc.description4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0001123
dc.identifierhttp://arxiv.org/abs/cond-mat/0001123
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/15946
dc.subjectSuperconductivity
dc.titleEnhanced vortex damping by eddy currents in superconductor-semiconduc tor hybrids
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