Magnetic vortex pinning in superconductor/ferromagnet nanocomposites
نویسندگان
چکیده
منابع مشابه
Superconducting vortex pinning with artificial magnetic nanostructures
This review is dedicated to summarizing the recent research on vortex dynamics and pinning effects in superconducting films with artificial magnetic structures. The fabrication of hybrid superconducting/ magnetic systems is presented together with the wide variety of properties that arise from the interaction between the superconducting vortex lattice and the artificial magnetic nanostructures....
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Mariela Menghini,1 R. B. G. Kramer,1 A. V. Silhanek,1 J. Sautner,2 V. Metlushko,2 K. De Keyser,1 J. Fritzsche,1 N. Verellen,1 and V. V. Moshchalkov1 1Nanoscale Superconductivity and Magnetism and Pulsed Fields Group, Institute for Nanoscale Physics and Chemistry (INPAC), K. U. Leuven Celestijnenlaan 200 D, B-3001 Leuven, Belgium 2Department of Electrical and Computer Engineering, University of ...
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The pinning of superconducting vortices in typeII superconductors has been studied for a long time due to the wide variety of unusual flux flow phenomena and more importantly, for its relevance in applications, since vortex pinning is one of the essential parameters controlling the enhancement of critical currents. A case of particular interest is the use of artificial magnetic pinning centers,...
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Vortex matter in high temperature superconductors has many peculiar properties such as melting of the vortex lattice, creation of new vortex-liquid phases etc. These effects are not seen in conventional superconductors. This is mainly due to the fact that HTc compounds are strongly type two superconductors with Ginzburg-Landau ratio up to ~110 that makes thermal and quantum fluctuations more pr...
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We discuss the pinning properties of MgB2 thin films grown by pulsed-laser deposition (PLD) and by electron-beam (EB) evaporation. Two mechanisms are identified that contribute most effectively to the pinning of vortices in randomly oriented films. The EB process produces low defected crystallites with a small grain size providing enhanced pinning at grain boundaries without any degradation of ...
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ژورنال
عنوان ژورنال: Superconductor Science and Technology
سال: 2007
ISSN: 0953-2048,1361-6668
DOI: 10.1088/0953-2048/20/9/s04