Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/211321
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Charge localization and reentrant superconductivity in a quasi-ballistic InAs nanowire coupled to superconductors |
Autor: | Estrada Saldaña, J.C.; Žitko, R.; Cleuziou, J.P.; Lee, Eduardo J. H.; Zannier, V.; Ercolani, D.; Sorba, L.; Aguado, Ramón CSIC ORCID; De Franceschi, S. | Palabras clave: | Semiconductor nanowires Spin-orbit Superconductors |
Fecha de publicación: | 2019 | Editor: | American Association for the Advancement of Science | Citación: | Science Advances 5 (2019) | Resumen: | [EN] A semiconductor nanowire with strong spin-orbit coupling in proximity to a superconductor is predicted to display Majorana edge states emerging under a properly oriented magnetic field. The experimental investigation of these exotic states requires assessing the one-dimensional (1D) character of the nanowire and understanding the superconducting proximity effect in the presence of a magnetic field. Here, we explore the quasi-ballistic 1D transport regime of an InAs nanowire with Ta contacts. Fine-tuned by means of local gates, the observed plateaus of approximately quantized conductance hide the presence of a localized electron, giving rise to a lurking Coulomb blockade effect and Kondo physics. When Ta becomes superconducting, this local charge causes an unusual, reentrant magnetic field dependence of the supercurrent, which we ascribe to a 0 - p transition. Our results underline the relevant role of unintentional charge localization in the few-channel regime where helical subbands and Majorana quasi-particles are expected to arise. | Versión del editor: | http://dx.doi.org/10.1126/sciadv.aav1235 | URI: | http://hdl.handle.net/10261/211321 | DOI: | 10.1126/sciadv.aav1235 | Identificadores: | doi: 10.1126/sciadv.aav1235 e-issn: 2375-2548 |
Aparece en las colecciones: | (ICMM) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Estrada_Charge_Sci_Advances_eaav1235.full.pdf | 1,92 MB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
14
checked on 20-abr-2024
WEB OF SCIENCETM
Citations
14
checked on 22-feb-2024
Page view(s)
109
checked on 22-abr-2024
Download(s)
101
checked on 22-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
Este item está licenciado bajo una Licencia Creative Commons