97386 20210902121915.0 doi 10.3390/nano10122525 sideral 121771 ART-2020-121771 eng (orcid)0000-0002-3309-5961 Cubero, Á. Universidad de Zaragoza Surface superconductivity changes of niobium sheets by femtosecond laser-induced periodic nanostructures 2020 Access copy available to the general public Unrestricted Irradiation with ultra-short (femtosecond) laser beams enables the generation of sub-wavelength laser-induced periodic surface structures (LIPSS) over large areas with controlled spatial periodicity, orientation, and depths affecting only a material layer on the sub-micrometer scale. This study reports on how fs-laser irradiation of commercially available Nb foil samples affects their superconducting behavior. DC magnetization and AC susceptibility measurements at cryogenic temperatures and with magnetic fields of different amplitude and orientation are thus analyzed and reported. This study pays special attention to the surface superconducting layer that persists above the upper critical magnetic field strength Hc2, and disappears at a higher nucleation field strength Hc3 . Characteristic changes were distinguished between the surface properties of the laser-irradiated samples, as compared to the corresponding reference samples (non-irradiated). Clear correlations have been observed between the surface nanostructures and the nucleation field Hc3, which depends on the relative orientation of the magnetic field and the surface patterns developed by the laser irradiation. info:eu-repo/grantAgreement/ES/DGA-FEDER/Construyendo Europa desde Aragón info:eu-repo/grantAgreement/ES/DGA/T54-20R info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 5.076 2020 PHYSICS, APPLIED 35 / 160 = 0.219 2020 Q1 T1 NANOSCIENCE & NANOTECHNOLOGY 51 / 106 = 0.481 2020 Q2 T2 CHEMISTRY, MULTIDISCIPLINARY 55 / 178 = 0.309 2020 Q2 T1 MATERIALS SCIENCE, MULTIDISCIPLINARY 103 / 333 = 0.309 2020 Q2 T1 0.919 2020 Materials Science (miscellaneous) 2020 Q1 Chemical Engineering (miscellaneous) 2020 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion (orcid)0000-0003-4839-5286 Martínez, E. Universidad de Zaragoza (orcid)0000-0001-5685-2366 Angurel, L.A. Universidad de Zaragoza (orcid)0000-0002-0500-1745 de la Fuente, G.F. Universidad de Zaragoza (orcid)0000-0002-4140-4058 Navarro, R. Universidad de Zaragoza Legall, H. Krüger, J. Bonse, J. 5001 065 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Cienc.Mater. Ingen.Metal. 10, 12 (2020), 2525 [1-16] Nanomaterials (Basel) Nanomaterials 2079-4991 1847772 http://zaguan.unizar.es/record/97386/files/texto_completo.pdf Versión publicada 478592 http://zaguan.unizar.es/record/97386/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:97386 articulos driver 2021-09-02-10:45:19 ARTICLE