130172 20241125101132.0 doi 10.1088/1361-6463/acdd0e sideral 135131 ART-2023-135131 eng Román, A. Magnetization reversal modes and coercive field dependence on perpendicular magnetic anisotropy in FePt thin films 2023 Access copy available to the general public Unrestricted The competition between shape and perpendicular magnetic anisotropies in magnetic thin films gives rise to unusual magnetic behaviors. In ferromagnetic thin films, the presence of an out-of-plane component of the magnetic anisotropy may induce a transition from planar to stripe-like magnetic domains above a critical thickness, $t_{\mathrm c}$. In this article, we present a detailed study of the magnetization switching mechanism in FePt thin films, where this phenomenon is observed. Using micromagnetic simulations and experiments, we found that below $t_{\mathrm c}$ the reversal mechanism is well described by the two-phase model while above this thickness the magnetization within each stripe reverses by coherent rotation. We also analyzed the out-of-plane component of the magnetic anisotropy and its temperature dependence, probing that substrate-induced strains are responsible for the abnormal coercive field behavior observed for FePt films with $t\gt t_{\mathrm c}$. info:eu-repo/grantAgreement/EC/H2020/734187/EU/Spin conversion, logic storage in oxide-based electronics/SPICOLOST This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 734187-SPICOLOST info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 3.1 2023 PHYSICS, APPLIED 63 / 179 = 0.352 2023 Q2 T2 0.681 2023 Acoustics and Ultrasonics 2023 Q1 Surfaces, Coatings and Films 2023 Q1 Condensed Matter Physics 2023 Q2 Electronic, Optical and Magnetic Materials 2023 Q2 6.8 2023 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion López Pedroso, A. Bouzehouane, K. Gómez, J. E. Butera, A. Aguirre, M. H. Universidad de Zaragoza (orcid)0000-0002-1296-4793 Soares, M. Medeiros Garcia, C. Steren, L. B. 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 56, 39 (2023), 395002 [14 pp.] J. phys., D. Appl. phys., JPhysD JOURNAL OF PHYSICS D-APPLIED PHYSICS 0022-3727 5244024 http://zaguan.unizar.es/record/130172/files/texto_completo.pdf Postprint info:eu-repo/date/embargoEnd/2024-06-30 401484 http://zaguan.unizar.es/record/130172/files/texto_completo.jpg?subformat=icon icon Postprint info:eu-repo/date/embargoEnd/2024-06-30 oai:zaguan.unizar.es:130172 articulos driver 2024-11-22-11:59:11 ARTICLE