Spin depth profile and interlayer quality influence on the All-Optical Switching phenomena performance in Co/Pt multilayer thin films
The interaction between light and magnetism in magnetic metamaterials with ultrafast optical response could lead to novel magnetic memory devices. One of the promising candidates with such characteristics are Co/Pt multilayer thin films with perpendicular magnetic anisotropy (PMA) that exhibit an emerging phenomenon called All-Optical Switching (AOS). The AOS consists in the inversion of the magnetization induced by ultrafast laser pulses, where circularly polarized femtosecond laser pulses deterministically reverse the magnetic domains of magnetic thin films driven by the AOS phenomenon. The AOS behaviour is critically dependent on the growth conditions of the multilayers, as well as on and subtle variations in layer thickness, roughness and magnetic depth-profile, alongside with possible interlayer atomic diffusion events. Here we propose to carry out a polarized neutron reflectometry experiment to shed light on the widely discussed mechanism under AOS and optimizing the sample¿s parameters towards its usefulness in future technological devices.
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VILLAR Aritz; DEVISHVILI Anton; DOMENECH AZORIN Daniel; MORALES ARBOLEYA Rafael; PORRO AZPIAZU Jose Maria; RIO LOPEZ Natalia Ahiova; SAERBECK Thomas and Alexei Vorobiev. (2024). Spin depth profile and interlayer quality influence on the All-Optical Switching phenomena performance in Co/Pt multilayer thin films. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-72-24
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