Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/51243
Title: Avalanche-like vortex penetration driven by pulsed microwave fields in an epitaxial LaSrCuO thin film
Author: Cuadra-Solís, P.-de-J.
Hernández Ferràs, Joan Manel
García Santiago, Antoni
Tejada Palacios, Javier
Vanacken, J.
Moshchalkov, V. V.
Keywords: Superconductors
Camps magnètics
Pel·lícules fines
Camps elèctrics
Superconductors
Magnetic fields
Thin films
Electric fields
Issue Date: 16-Dec-2013
Publisher: American Institute of Physics
Abstract: Different vortex penetration regimes have been registered in the output voltage signal of a magnetometer when single microwave pulses are applied to an epitaxial overdoped La2− x Sr x CuO4 thin film in a perpendicular dc magnetic field. The onset of a significant variation in the sample magnetization which exists below threshold values of temperature, dc magnetic field, and pulse duration is interpreted as an avalanche-type flux penetration. The microwave contribution to the background electric field suggests that the nucleation of this fast vortex motion is of electric origin, which also guarantees the occurrence of vortex instabilities under adiabatic conditions via the enhancement of the flux flow resistivity. Flux creep phenomena and heat transfer effects act as stabilizing factors against the microwave-pulse-induced fast flux diffusion.
Note: Reproducció del document publicat a: http://dx.doi.org/10.1063/1.4848997
It is part of: Journal of Applied Physics, 2013, vol. 114, p. 233902-1-233902-7
Related resource: http://dx.doi.org/10.1063/1.4848997
URI: http://hdl.handle.net/2445/51243
ISSN: 0021-8979
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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