Between waves and patterns: Spin wave freezing in films with Dzyaloshinskii-Moriya interaction

0570940 - FZÚ 2024 RIV US eng J - Článek v odborném periodiku
Kisielewski, J. - Gruszecki, P. - Krawczyk, M. - Zablotskii, Vitalii - Maziewski, A.
Between waves and patterns: Spin wave freezing in films with Dzyaloshinskii-Moriya interaction.
Physical Review B. Roč. 107, č. 13 (2023), č. článku 134416. ISSN 2469-9950. E-ISSN 2469-9969
Grant CEP: GA MŠMT(CZ) EF16_019/0000760
Grant ostatní: OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institucionální podpora: RVO:68378271
Klíčová slova: magnetic anisotropy * magnetic domains * magnetic phase transitions * spin waves
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 3.7, rok: 2022
Způsob publikování: Omezený přístup
https://doi.org/10.1103/PhysRevB.107.134416

The relationship between waves and static pattern formation is an intriguing effect and remains unexplained in many areas of physics, including magnetism. We study the spin-wave-mediated spin reorientation transition (SRT) in magnetic films with uniaxial magnetic anisotropy and Dzyaloshinskii-Moriya interaction (DMI). In particular, we show that propagating spin waves can freeze in the SRT, causing periodic magnetic domains to arise, which is reminiscent of the wave amplitude distribution. This process can take place under the influence of a change in the magnetic field, but also of other parameters. Interestingly, at the SRT, DMI nonreciprocity leads to the emergence of flowing magnetization patterns, which suggests a spontaneous breaking of translational symmetry, and the formation of magnonic space-time crystals.
Trvalý link: https://hdl.handle.net/11104/0342278