Magnetic correlations in room-temperature skyrmion multilayers
Magnetic multilayers composed of alternating ferromagnetic / heavy-metal layers are one of the most technologically promising classes of skyrmion-hosting systems due to number of their advantages, such as skyrmion stability at room temperature and their tunability via layer engineering. Through the combination of broken inversion symmetry and spin-orbit-coupling at the interfaces, Dzyaloshinskii-Moriya interaction is induced that leads to stabilization of Néel-type skyrmions in finite magnetic fields. Here we propose to utilise the polarized neutron reflectometry method that is optimized for probing multilayered films and provides important layer-resolved information on magnetic structure of the MMLs. By using the parameters deduced from PNR modelling we will be able to refine the Hamiltonian parameters used for micromagnetic models. This information will allow the further improvement of both material and technological aspects of the samples, thus making further steps towards the real-life applications of room-temperature skyrmions or other non-collinear topological 3D textures in MMLs.
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UKLEEV Victor; AJEJAS BAZAN Fernando; CROS Vincent; DEVISHVILI Anton; N. Reyren and WHITE Jonathan. (2021). Magnetic correlations in room-temperature skyrmion multilayers. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-54-379
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