131730 20241125101140.0 doi 10.1002/adfm.202311951 sideral 137030 ART-2023-137030 eng Pflug, Theo Laser-induced positional and chemical lattice reordering generating ferromagnetism 2023 Access copy available to the general public Unrestricted Atomic scale reordering of lattices can induce local modulations of functional material properties, such as reflectance and ferromagnetism. Pulsed femtosecond laser irradiation enables lattice reordering in the picosecond range. However, the dependence of the phase transitions on the initial lattice order as well as the temporal dynamics of these transitions remain to be understood. This study investigates the laser‐induced atomic reordering and the concomitant onset of ferromagnetism in thin Fe‐based alloy films with vastly differing initial atomic orders. The optical response to single femtosecond laser pulses on selected prototype systems, one that initially possesses positional disorder, Fe60V40, and a second system initially in a chemically ordered state, Fe60Al40, has been tracked with time. Despite the vastly different initial atomic orders the structure in both systems converges to a positionally ordered but chemically disordered state, accompanied by the onset of ferromagnetism. Time‐resolved measurements of the transient reflectance combined with simulations of the electron and phonon temperatures reveal that the reordering processes occur via the formation of a transient molten state with an approximate lifetime of 200 ps. These findings provide insights into the fundamental processes involved in laser‐induced atomic reordering, paving the way for controlling material properties in the picosecond range. info:eu-repo/grantAgreement/ES/DGA/E13-23R info:eu-repo/grantAgreement/ES/DGA-FEDER E28-23R info:eu-repo/grantAgreement/EC/H2020/823717/EU/Enabling Science and Technology through European Electron Microscopy/ESTEEM3 This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 823717-ESTEEM3 info:eu-repo/semantics/openAccess by-nc http://creativecommons.org/licenses/by-nc/3.0/es/ 18.5 2023 CHEMISTRY, PHYSICAL 11 / 178 = 0.062 2023 Q1 T1 MATERIALS SCIENCE, MULTIDISCIPLINARY 21 / 439 = 0.048 2023 Q1 T1 NANOSCIENCE & NANOTECHNOLOGY 9 / 141 = 0.064 2023 Q1 T1 PHYSICS, CONDENSED MATTER 5 / 79 = 0.063 2023 Q1 T1 CHEMISTRY, MULTIDISCIPLINARY 10 / 231 = 0.043 2023 Q1 T1 PHYSICS, APPLIED 9 / 179 = 0.05 2023 Q1 T1 5.496 2023 Biomaterials 2023 Q1 Electrochemistry 2023 Q1 Electronic, Optical and Magnetic Materials 2023 Q1 Nanoscience and Nanotechnology 2023 Q1 Condensed Matter Physics 2023 Q1 Materials Science (miscellaneous) 2023 Q1 Chemistry (miscellaneous) 2023 Q1 29.5 2023 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pablo-Navarro, Javier Universidad de Zaragoza (orcid)0000-0001-6771-6941 Anwar, Md. Shabad Olbrich, Markus Magén, César Universidad de Zaragoza (orcid)0000-0002-6761-6171 Ibarra, Manuel Ricardo Universidad de Zaragoza (orcid)0000-0003-0681-8260 Potzger, Kay Faßbender, Jürgen Lindner, Jürgen Horn, Alexander Bali, Rantej 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 34, 13 (2023), 2311951 [9 pp.] Adv. funct. mater. Advanced Functional Materials 1616-301X 7424161 http://zaguan.unizar.es/record/131730/files/texto_completo.pdf Versión publicada 2600101 http://zaguan.unizar.es/record/131730/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:131730 articulos driver 2024-11-22-12:02:29 ARTICLE