English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/174055
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
DC FieldValueLanguage
dc.contributor.authorHwang, Sun-Yonges_ES
dc.contributor.authorSánchez, Davides_ES
dc.contributor.authorLópez, Rosaes_ES
dc.date.accessioned2019-01-14T15:33:37Z-
dc.date.available2019-01-14T15:33:37Z-
dc.date.issued2017-10-
dc.identifier.citationEuropean Physical Journal B 90: 189 (2017)es_ES
dc.identifier.issn1434-6028-
dc.identifier.otherarXiv:1708.02451v1-
dc.identifier.urihttp://hdl.handle.net/10261/174055-
dc.description.abstractWe discuss the nonlinear Andreev current of an interacting quantum dot coupled to spin-polarized and superconducting reservoirs when voltage and temperature biases are applied across the nanostructure. Due to the particle-hole symmetry introduced by the superconducting (S) lead, the subgap spin current vanishes identically. Nevertheless, the Andreev charge current depends on the degree of polarization in the ferromagnetic (F) contact since the shift of electrostatic internal potential of the conductor depends on spin orientation of the charge carrier. This spin-dependent potential shift characterizes nonlinear responses in our device. We show how the subgap current versus the bias voltage or temperature difference depends on the lead polarization in two cases, namely (i) S-dominant case, when the dot-superconductor tunneling rate (Γ R ) is much higher than the ferromagnet-dot tunnel coupling (Γ L ), and (ii) F-dominant case, when Γ L ≫ Γ R . For the ferromagnetic dominant case the spin-dependent potential shows a nonmonotonic behavior as the dot level is detuned. Thus the subgap current can also exhibit interesting behaviors such as current rectification and the maximization of thermocurrents with smaller thermal biases when the lead polarization and the quantum dot level are adjusted.es_ES
dc.description.sponsorshipThis research was supported by MINECO under Grant No. FIS2014-52564, the Ministry of Innovation NRW and the Korean NRF under Grant No. 2014R1A6A3A03059105.es_ES
dc.language.isoenges_ES
dc.publisherEDP Scienceses_ES
dc.relationMINECO/ICTI2013-2016/FIS2014-52564es_ES
dc.relation.isversionofPreprintes_ES
dc.rightsopenAccesses_ES
dc.subjectMesoscopic and Nanoscale Systemses_ES
dc.titleNonlinear electric and thermoelectric Andreev transport through a hybrid quantum dot coupled to ferromagnetic and superconducting leadses_ES
dc.typeartículoes_ES
dc.identifier.doi10.1140/epjb/e2017-80242-1-
dc.description.peerreviewedNoes_ES
dc.relation.publisherversionhttps://doi.org/10.1140/epjb/e2017-80242-1es_ES
dc.identifier.e-issn1434-6036-
dc.contributor.funderMinisterio de Economía y Competitividad (España)es_ES
dc.contributor.funderStaatskanzlei des Landes Nordrhein-Westfalenes_ES
dc.contributor.funderNational Research Foundation of Koreaes_ES
dc.relation.csices_ES
oprm.item.hasRevisionno ko 0 false*
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003725es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003329es_ES
Appears in Collections:(IFISC) Artículos
Files in This Item:
File Description SizeFormat 
nonlinear_electric.pdf249,5 kBAdobe PDFThumbnail
View/Open
Show simple item record
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.