96205 20210902121929.0 doi 10.1039/d0nr02173c sideral 120497 ART-2020-120497 eng Berganza, E. Half-hedgehog spin textures in sub-100 nm soft magnetic nanodots 2020 Access copy available to the general public Unrestricted Topologically non-trivial structures such as magnetic skyrmions are nanometric spin textures of outstanding potential for spintronic applications due to their unique features. It is well known that Neel skyrmions of definite chirality are stabilized by the Dzyaloshinskii-Moriya exchange interaction (DMI) in bulk non-centrosymmetric materials or ultrathin films with strong spin-orbit coupling at the interface. In this work, we show that soft magnetic (permalloy) hemispherical nanodots are able to host three-dimensional chiral structures (half-hedgehog spin textures) with non-zero tropological charge. They are observed at room temperature, in absence of DMI interaction and they can be further stabilized by the magnetic field arising from the Magnetic Force Microscopy probe. Micromagnetic simulations corroborate the experimental data. Our work implies the existence of a new degree of freedom to create and manipulate complex 3D spin-textures in soft magnetic nanodots and opens up future possibilities to explore their magnetization dynamics. info:eu-repo/grantAgreement/ES/DGA-FEDER/Construyendo Europa desde Aragón info:eu-repo/grantAgreement/ES/DGA-FSE/E13-20R info:eu-repo/grantAgreement/ES/MINECO/FIS2016-78591-C3-3-R info:eu-repo/grantAgreement/ES/MINECO/MAT2015-73775-JIN info:eu-repo/grantAgreement/ES/MINECO/MAT2016-76824-C3-1-R info:eu-repo/grantAgreement/ES/MINECO/MAT2017-82970-C2 info:eu-repo/grantAgreement/ES/MINECO/MAT2017-83632-C3 info:eu-repo/grantAgreement/ES/MINECO/MAT2018-102627-T info:eu-repo/grantAgreement/ES/MINECO/MDM-2014-0377 info:eu-repo/grantAgreement/ES/MINECO/S2018-NMT-4321 info:eu-repo/semantics/openAccess by-nc http://creativecommons.org/licenses/by-nc/3.0/es/ 7.79 2020 MATERIALS SCIENCE, MULTIDISCIPLINARY 62 / 333 = 0.186 2020 Q1 T1 PHYSICS, APPLIED 23 / 160 = 0.144 2020 Q1 T1 CHEMISTRY, MULTIDISCIPLINARY 32 / 178 = 0.18 2020 Q1 T1 NANOSCIENCE & NANOTECHNOLOGY 29 / 106 = 0.274 2020 Q2 T1 2.037 2020 Nanoscience and Nanotechnology 2020 Q1 Materials Science (miscellaneous) 2020 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Jaafar, M. Fernandez-Roldan, J.A. Goiriena-Goikoetxea, M. Pablo-Navarro, J. (orcid)0000-0001-6771-6941 Garcia-Arribas, A. Guslienko, K. Magen, C. Universidad de Zaragoza (orcid)0000-0002-6761-6171 De Teresa, J.M. Universidad de Zaragoza (orcid)0000-0001-9566-0738 Chubykalo-Fesenko, O. Asenjo, A. 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 12, 36 (2020), 18646-18653 Nanoscale Nanoscale 2040-3364 498137 http://zaguan.unizar.es/record/96205/files/texto_completo.pdf Versión publicada 38987 http://zaguan.unizar.es/record/96205/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:96205 articulos driver 2021-09-02-10:53:16 ARTICLE