000170261 001__ 170261
000170261 005__ 20260410165450.0
000170261 0247_ $$2doi$$a10.1016/j.surfin.2026.109028
000170261 0248_ $$2sideral$$a148801
000170261 037__ $$aART-2026-148801
000170261 041__ $$aeng
000170261 100__ $$0(orcid)0009-0007-9057-3943$$aFrechilla, Javier$$uUniversidad de Zaragoza
000170261 245__ $$aAnisotropy by design in superconducting Nb thin films via ultrashort-pulse laser irradiation
000170261 260__ $$c2026
000170261 5060_ $$aAccess copy available to the general public$$fUnrestricted
000170261 5203_ $$aThe ability to fabricate anisotropic superconducting layers & agrave; la carte is desired in technologies such as fluxon screening or removal in field-resilient devices, flux lensing in ultra-sensitive sensors, or in templates for imprinting magnetic structures in hybrid magnetic/superconducting multilayers. In this work, laser processing is qualified as an enabling technology in the controllable fabrication of superconducting metasurfaces. Niobium thin films exposed to femtosecond ultraviolet laser pulses exhibit significant changes in their superconducting properties, directly connected with the observed surface topography, crystallite geometry, and lattice parameter modifications. On the mesoscopic scale, quasi-parallel periodic ripple structures (about 260 nm of spatial period) gradually form on the film surface by progressively increasing the laser energy per pulse, Ep. This gives way to a stepwise increase of the critical current anisotropy and magnetic flux channeling effects along the ripples. As demonstrated in our resistive and inductive measurements, these superstructures determine the electromagnetic response of the superconducting material. Time-dependent Ginzburg-Landau simulations corroborate the topographical origin of the customized anisotropy. Pulsed laser processing is promoted as a flexible, one-step, and scalable lithography-free technique for versatile surface functionalization in microelectronic superconducting technology.
000170261 536__ $$9info:eu-repo/grantAgreement/EUR/COST-Action/CA21144-SUPERQUMAP$$9info:eu-repo/grantAgreement/ES/DGA/T54-23R$$9info:eu-repo/grantAgreement/ES/MICINN/AEI/PID2020-113034RB-I00$$9info:eu-repo/grantAgreement/ES/MICIU/PID2023-146041OBC21
000170261 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
000170261 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000170261 700__ $$aLejeune, Nicolas
000170261 700__ $$0(orcid)0000-0003-4839-5286$$aMartínez, Elena
000170261 700__ $$aFourneau, Emile
000170261 700__ $$aFrechilla, Alejandro$$uUniversidad de Zaragoza
000170261 700__ $$aMartín, Sergio
000170261 700__ $$aCadorim, Leonardo R.
000170261 700__ $$0(orcid)0000-0001-5685-2366$$aAngurel, Luis A.$$uUniversidad de Zaragoza
000170261 700__ $$0(orcid)0000-0002-0500-1745$$ade la Fuente, Germán F.
000170261 700__ $$aSilhanek, Alejandro V.
000170261 700__ $$aMiloševic, Milorad V.
000170261 700__ $$0(orcid)0000-0002-8753-2397$$aBadía-Majós, Antonio$$uUniversidad de Zaragoza
000170261 7102_ $$15002$$2515$$aUniversidad de Zaragoza$$bDpto. Ingeniería Diseño Fabri.$$cÁrea Ing. Procesos Fabricación
000170261 7102_ $$15001$$2065$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Cienc.Mater. Ingen.Metal.
000170261 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000170261 773__ $$g87 (2026), 109028 [13 pp.]$$tSurfaces and Interfaces$$x2468-0230
000170261 8564_ $$s4658669$$uhttps://zaguan.unizar.es/record/170261/files/texto_completo.pdf$$yVersión publicada
000170261 8564_ $$s2608686$$uhttps://zaguan.unizar.es/record/170261/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000170261 909CO $$ooai:zaguan.unizar.es:170261$$particulos$$pdriver
000170261 951__ $$a2026-04-10-13:45:24
000170261 980__ $$aARTICLE