DOMAIN WALLS IN MAGNETO-ELASTIC HETEROSTRUCTURES: MODELING AND EXPERIMENT

M. V. Logunov (1, 2) , S. A. Nikitov (1, 2, 3) , S. A. Osokin (1, 2, 3) , A. G. Temiryazev (2) , M. P. Temiryazeva (2, 1) , Stefano Giordano (4, 5) , T. Mathurin (2, 4, 5) , Yannick Dusch (2, 4, 5) , Nicolas Tiercelin (2, 4, 5) , Philippe Pernod (2, 4, 5)

1 IRE - Kotelnikov Institute of Radio Engineering and Electronics
2 LIA LICS/LEMAC - Laboratoire International associé sur les phénomènes Critiques et Supercritiques en électronique fonctionnelle, acoustique et fluidique
3 MIPT - Moscow Institute of Physics and Technology [Moscow]
4 IEMN - Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520
5 AIMAN-FILMS - IEMN - Acoustique Impulsionnelle & Magnéto-Acoustique Non linéaire - Fluides, Interfaces Liquides & Micro-Systèmes - IEMN

This paper presents the results of modeling and experimental study of the domain structure and magnetization reversal processes of magneto-elastic parabolic-shaped nanostripes. Multilayered magnetostrictive films of TbCo2/FeCo composition were deposited onto piezoelectric PMN-PT substrates by RF sputtering using a Leybold Z550 equipment. The deposition was made under a magnetic field generated by permanent magnets in order to induce a magnetic easy axis anisotropy in the desired direction in the plane of the multilayer film. Then, micro- and nanostructures of various shapes were formed in the films by lithography for experimental study of magnetization distribution, processes of magnetization reversal, formation and movement of domain walls in the films.

Domaines: Science non linéaire [physics]; Science des matériaux [cond-mat.mtrl-sci]

M. V. Logunov, S. A. Nikitov, S. A. Osokin, A. G. Temiryazev, M. P. Temiryazeva, et al.. DOMAIN WALLS IN MAGNETO-ELASTIC HETEROSTRUCTURES: MODELING AND EXPERIMENT. International сonference "Mathematical modeling in materials science of electronic components" (ММMSEC-2019), Oct 2019, Moscou, Russia. pp.139-140. ⟨hal-02338025⟩