Proximity effects and vortex dynamics in superconducting heterostructures

Vortex lattice dynamics has been studied in thin Nb superconducting films sputtered on top of a dense triangular array of V dots with and without an intermediate SiO2 insulating layer. While The insulating layer modifies only slightly The Nb film corrugation, it reduces superconducting commensurabil...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Carreira, S.J., Bekeris, V., Rosen, Y.J., Monton, C., Schuller, I.K., Calzetta E., Centro Latinoamericano de Fisica (CLAF); Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET); International Centre for Theoretical Physics (ICTP) and Universidad de Buenos Aires (UBA); International Union of Pure and Applied Physics (IUPAP); Ministerio de Ciencia, Tecnologia e Innovacion Productiva (MINCYT)
Formato: CONF
Materias:
Crystal lattices
Insulating materials
Insulation
Low temperature effects
Temperature
Temperature distribution
Vortex flow
Critical temperatures
Insulating layers
Matching fields
Parabolic temperature
Proximity effects
Triangular arrays
Vortex dynamics
Vortex lattice dynamics
Superconducting films
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_17426588_v568_n_p_Carreira
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_17426588_v568_n_p_Carreira
record_format dspace
spelling todo:paper_17426588_v568_n_p_Carreira2023-10-03T16:30:56Z Proximity effects and vortex dynamics in superconducting heterostructures Carreira, S.J. Bekeris, V. Rosen, Y.J. Monton, C. Schuller, I.K. Calzetta E. Centro Latinoamericano de Fisica (CLAF); Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET); International Centre for Theoretical Physics (ICTP) and Universidad de Buenos Aires (UBA); International Union of Pure and Applied Physics (IUPAP); Ministerio de Ciencia, Tecnologia e Innovacion Productiva (MINCYT) Crystal lattices Insulating materials Insulation Low temperature effects Temperature Temperature distribution Vortex flow Critical temperatures Insulating layers Matching fields Parabolic temperature Proximity effects Triangular arrays Vortex dynamics Vortex lattice dynamics Superconducting films Vortex lattice dynamics has been studied in thin Nb superconducting films sputtered on top of a dense triangular array of V dots with and without an intermediate SiO2 insulating layer. While The insulating layer modifies only slightly The Nb film corrugation, it reduces superconducting commensurability effects (CE) substantially. This implies that superconducting commensurability is dominated by proximity effects. Moreover, The HC2 (T) phase diagram of The sample without an insulating layer shows a parabolic temperature dependence near TC and critical temperature oscillations with The periodicity of The matching field. Therefore, strong proximity effects locally suppress superconductivity leading to a superconducting mesh. When The proximity effect is decreased by an insulating layer, HC2(T) follows The expected linear T dependence. © Published under licence by IOP Publishing Ltd. Fil:Bekeris, V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. CONF info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_17426588_v568_n_p_Carreira
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Crystal lattices
Insulating materials
Insulation
Low temperature effects
Temperature
Temperature distribution
Vortex flow
Critical temperatures
Insulating layers
Matching fields
Parabolic temperature
Proximity effects
Triangular arrays
Vortex dynamics
Vortex lattice dynamics
Superconducting films
spellingShingle Crystal lattices
Insulating materials
Insulation
Low temperature effects
Temperature
Temperature distribution
Vortex flow
Critical temperatures
Insulating layers
Matching fields
Parabolic temperature
Proximity effects
Triangular arrays
Vortex dynamics
Vortex lattice dynamics
Superconducting films
Carreira, S.J.
Bekeris, V.
Rosen, Y.J.
Monton, C.
Schuller, I.K.
Calzetta E.
Centro Latinoamericano de Fisica (CLAF); Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET); International Centre for Theoretical Physics (ICTP) and Universidad de Buenos Aires (UBA); International Union of Pure and Applied Physics (IUPAP); Ministerio de Ciencia, Tecnologia e Innovacion Productiva (MINCYT)
Proximity effects and vortex dynamics in superconducting heterostructures
topic_facet Crystal lattices
Insulating materials
Insulation
Low temperature effects
Temperature
Temperature distribution
Vortex flow
Critical temperatures
Insulating layers
Matching fields
Parabolic temperature
Proximity effects
Triangular arrays
Vortex dynamics
Vortex lattice dynamics
Superconducting films
description Vortex lattice dynamics has been studied in thin Nb superconducting films sputtered on top of a dense triangular array of V dots with and without an intermediate SiO2 insulating layer. While The insulating layer modifies only slightly The Nb film corrugation, it reduces superconducting commensurability effects (CE) substantially. This implies that superconducting commensurability is dominated by proximity effects. Moreover, The HC2 (T) phase diagram of The sample without an insulating layer shows a parabolic temperature dependence near TC and critical temperature oscillations with The periodicity of The matching field. Therefore, strong proximity effects locally suppress superconductivity leading to a superconducting mesh. When The proximity effect is decreased by an insulating layer, HC2(T) follows The expected linear T dependence. © Published under licence by IOP Publishing Ltd.
format CONF
author Carreira, S.J.
Bekeris, V.
Rosen, Y.J.
Monton, C.
Schuller, I.K.
Calzetta E.
Centro Latinoamericano de Fisica (CLAF); Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET); International Centre for Theoretical Physics (ICTP) and Universidad de Buenos Aires (UBA); International Union of Pure and Applied Physics (IUPAP); Ministerio de Ciencia, Tecnologia e Innovacion Productiva (MINCYT)
author_facet Carreira, S.J.
Bekeris, V.
Rosen, Y.J.
Monton, C.
Schuller, I.K.
Calzetta E.
Centro Latinoamericano de Fisica (CLAF); Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET); International Centre for Theoretical Physics (ICTP) and Universidad de Buenos Aires (UBA); International Union of Pure and Applied Physics (IUPAP); Ministerio de Ciencia, Tecnologia e Innovacion Productiva (MINCYT)
author_sort Carreira, S.J.
title Proximity effects and vortex dynamics in superconducting heterostructures
title_short Proximity effects and vortex dynamics in superconducting heterostructures
title_full Proximity effects and vortex dynamics in superconducting heterostructures
title_fullStr Proximity effects and vortex dynamics in superconducting heterostructures
title_full_unstemmed Proximity effects and vortex dynamics in superconducting heterostructures
title_sort proximity effects and vortex dynamics in superconducting heterostructures
url http://hdl.handle.net/20.500.12110/paper_17426588_v568_n_p_Carreira
work_keys_str_mv AT carreirasj proximityeffectsandvortexdynamicsinsuperconductingheterostructures
AT bekerisv proximityeffectsandvortexdynamicsinsuperconductingheterostructures
AT rosenyj proximityeffectsandvortexdynamicsinsuperconductingheterostructures
AT montonc proximityeffectsandvortexdynamicsinsuperconductingheterostructures
AT schullerik proximityeffectsandvortexdynamicsinsuperconductingheterostructures
AT calzettae proximityeffectsandvortexdynamicsinsuperconductingheterostructures
AT centrolatinoamericanodefisicaclafconsejonacionaldeinvestigacionescientificasytecnicasconicetinternationalcentrefortheoreticalphysicsictpanduniversidaddebuenosairesubainternationalunionofpureandappliedphysicsiupapministeriodecienciatecnologiaeinnovacionpro proximityeffectsandvortexdynamicsinsuperconductingheterostructures
_version_ 1807322123754012672

Ejemplares similares