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Gomez, A.; Del Valle, J.; Gonzalez, E.M.; Chiliotte, C.E.; Carreira, S.J.; Bekeris, V.; Prieto, J.L.; Schuller, I.K.; Vicent, J.L. "Vortex pinning vs superconducting wire network: Origin of periodic oscillations induced by applied magnetic fields in superconducting films with arrays of nanomagnets" (2014) Superconductor Science and Technology. 27(6)
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Abstract:

Hybrid magnetic arrays embedded in superconducting films are ideal systems to study the competition between different physical (such as the coherence length) and structural length scales such as are available in artificially produced structures. This interplay leads to oscillation in many magnetically dependent superconducting properties such as the critical currents, resistivity and magnetization. These effects are generally analyzed using two distinct models based on vortex pinning or wire network. In this work, we show that for magnetic dot arrays, as opposed to antidot (i.e. holes) arrays, vortex pinning is the main mechanism for field induced oscillations in resistance R(H), critical current Ic(H), magnetization M(H) and ac-susceptibility χac(H) in a broad temperature range. Due to the coherence length divergence at Tc, a crossover to wire network behaviour is experimentally found. While pinning occurs in a wide temperature range up to Tc, wire network behaviour is only present in a very narrow temperature window close to Tc. In this temperature interval, contributions from both mechanisms are operational but can be experimentally distinguished. © 2014 IOP Publishing Ltd.

Registro:

Documento: Artículo
Título:Vortex pinning vs superconducting wire network: Origin of periodic oscillations induced by applied magnetic fields in superconducting films with arrays of nanomagnets
Autor:Gomez, A.; Del Valle, J.; Gonzalez, E.M.; Chiliotte, C.E.; Carreira, S.J.; Bekeris, V.; Prieto, J.L.; Schuller, I.K.; Vicent, J.L.
Filiación:Departamento de Física de Materiales, Facultad CC. Físicas, Universidad Complutense, E-28040 Madrid, Spain
IMDEA-Nanociencia, Cantoblanco, E-28049 Madrid, Spain
Departamento de Física, Facultad de C. Exactas y Naturales, Universidad de Buenos Aires, Argentina
ISOM-ETSIT, Universidad Politécnica de Madrid, E-28040 Madrid, Spain
Department of Physics, Center for Advanced Nanoscience (CAN), University of California-San Diego, San Diego, CA 92093, United States
Palabras clave:Little-Parks effect; nanoestructures; vortex pinning; Embedded systems; Magnetization; Superconducting films; Wire; Applied magnetic fields; Broad temperature ranges; Little-Parks effects; nanoestructures; Superconducting properties; Temperature intervals; Vortex pinning; Wide temperature ranges; Vortex flow
Año:2014
Volumen:27
Número:6
DOI: http://dx.doi.org/10.1088/0953-2048/27/6/065017
Título revista:Superconductor Science and Technology
Título revista abreviado:Supercond Sci Technol
ISSN:09532048
CODEN:SUSTE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09532048_v27_n6_p_Gomez

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Citas:

---------- APA ----------
Gomez, A., Del Valle, J., Gonzalez, E.M., Chiliotte, C.E., Carreira, S.J., Bekeris, V., Prieto, J.L.,..., Vicent, J.L. (2014) . Vortex pinning vs superconducting wire network: Origin of periodic oscillations induced by applied magnetic fields in superconducting films with arrays of nanomagnets. Superconductor Science and Technology, 27(6).
http://dx.doi.org/10.1088/0953-2048/27/6/065017
---------- CHICAGO ----------
Gomez, A., Del Valle, J., Gonzalez, E.M., Chiliotte, C.E., Carreira, S.J., Bekeris, V., et al. "Vortex pinning vs superconducting wire network: Origin of periodic oscillations induced by applied magnetic fields in superconducting films with arrays of nanomagnets" . Superconductor Science and Technology 27, no. 6 (2014).
http://dx.doi.org/10.1088/0953-2048/27/6/065017
---------- MLA ----------
Gomez, A., Del Valle, J., Gonzalez, E.M., Chiliotte, C.E., Carreira, S.J., Bekeris, V., et al. "Vortex pinning vs superconducting wire network: Origin of periodic oscillations induced by applied magnetic fields in superconducting films with arrays of nanomagnets" . Superconductor Science and Technology, vol. 27, no. 6, 2014.
http://dx.doi.org/10.1088/0953-2048/27/6/065017
---------- VANCOUVER ----------
Gomez, A., Del Valle, J., Gonzalez, E.M., Chiliotte, C.E., Carreira, S.J., Bekeris, V., et al. Vortex pinning vs superconducting wire network: Origin of periodic oscillations induced by applied magnetic fields in superconducting films with arrays of nanomagnets. Supercond Sci Technol. 2014;27(6).
http://dx.doi.org/10.1088/0953-2048/27/6/065017