145146 20241003094705.0 doi 10.1016/j.apsusc.2024.161214 sideral 139984 ART-2025-139984 eng Martínez, Elena (orcid)0000-0003-4839-5286 Laser engineered architectures for magnetic flux manipulation on superconducting Nb thin films 2025 Custom shaped magnetic flux guiding channels have been fabricated on superconducting Nb thin films by laser nanopatterning of their surface. Preferential pathways are defined by suitable combination of imprinted anisotropic pinning domains through laser-induced periodic surface structures (LIPSS). Generated by the selective energy deposition of femtosecond UV laser pulses, quasi-parallel ripple structures are formed under optimized irradiation conditions. On average, each domain is formed by grooves with a lateral period of 260–270 nm and a depth about 80 nm. By combination of scanning and transmission electron microscopy, magneto-optical imaging, and conductive atomic force microscopy techniques, we conclude that the boundaries of the LIPSS-covered domains play a prominent role in the magnetic flux diversion process within the film. This is confirmed by dedicated modeling of the flux dynamics, combined with the inversion of the magneto-optical signal. The created metasurfaces enable control of the flux penetration process at the microscale. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/DGA/T54-23R info:eu-repo/grantAgreement/ES/MICINN/AEI/PID2020-113034RB-I00 info:eu-repo/semantics/openAccess by-nc http://creativecommons.org/licenses/by-nc/3.0/es/ info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Lejeune, Nicolas Frechilla, Javier Universidad de Zaragoza (orcid)0009-0007-9057-3943 Porta-Velilla, Luis Universidad de Zaragoza Fourneau, Emile Angurel, Luis A. Universidad de Zaragoza (orcid)0000-0001-5685-2366 de la Fuente, Germán F. (orcid)0000-0002-0500-1745 Bonse, Jörn Silhanek, Alejandro V. Badía-Majós, Antonio Universidad de Zaragoza (orcid)0000-0002-8753-2397 5001 065 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Cienc.Mater. Ingen.Metal. 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 679 (2025), 161214 [12 pp.] Appl. surf. sci. Applied Surface Science 0169-4332 Laser Engineered Architectures for Magnetic Flux Manipulation on Superconducting Nb Thin Films 10.5281/zenodo.11521075 5105100 http://zaguan.unizar.es/record/145146/files/texto_completo.pdf Versión publicada 2697854 http://zaguan.unizar.es/record/145146/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:145146 articulos driver 2024-10-03-08:55:50 ARTICLE