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Control of dissipation in superconducting films by magnetic stray fields



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Gómez Nicola, Ángel y Gilbert, D. A. y González Herrera, Elvira María y Liu, Kai y Vicent López, José Luis (2013) Control of dissipation in superconducting films by magnetic stray fields. Applied physics letters, 102 (5). ISSN 0003-6951

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URL Oficial: http://dx.doi.org/10.1063/1.4790846

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Hybrid superconducting/magnetic nanostructures on Si substrates have been built with identical physical dimensions but different magnetic configurations. By constructing arrays based on Co-dots with in-plane, out-of-plane, and vortex state magnetic configurations, the stray fields are systematically tuned. Dissipation in the mixed state of superconductors can be decreased (increased) by several orders of magnitude by decreasing (increasing) the stray magnetic fields. Furthermore, ordering of the stray fields over the entire array helps to suppress dissipation and enhance commensurability effects increasing the number of dissipation minima.

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© 2013 American Institute of Physics.
This work has been supported by Spanish MINECO, FIS2008-06249 (Grupo Consolidado), Consolider CSD2007-00010, and CAM S2009/MAT-1726. Work at UCD has been supported by the US NSF (DMR-1008791 and ECCS- 0925626).

Palabras clave:Pinning centers; Regular array; Dipoles; Dots
Materias:Ciencias > Física > Física-Modelos matemáticos
Ciencias > Física > Física de materiales
Ciencias > Física > Física del estado sólido
Ciencias > Física > Física matemática
Código ID:43095
Depositado:15 Jun 2017 17:22
Última Modificación:10 Dic 2018 15:09

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