Mapping magnetization states in ultrathin films with Dzyaloshinskii-Moriya interaction

0509386 - FZÚ 2020 RIV GB eng J - Článek v odborném periodiku
Kisielewski, J. - Kisielewski, M. - Zablotskyy, Vitaliy A. - Dejneka, Alexandr - Maziewski, A.
Mapping magnetization states in ultrathin films with Dzyaloshinskii-Moriya interaction.
New Journal of Physics. Roč. 21, Sep (2019), s. 1-8, č. článku 093022. ISSN 1367-2630. E-ISSN 1367-2630
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: thin films * micromagnetic simulations * magnetic skyrmions * chiral magnetization
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 3.539, rok: 2019
Způsob publikování: Open access

To succeed in the next generation of magnetic storages, nanomagnetic structures must be engineered to allow modulation of magnetization amplitude and spatial period. We demonstrate computationally how magnetic nanostructures states (domains with narrow wall, skyrmions, spin spirals, conical spin spirals, and in-plane magnetization configuration) can be designed in ultrathin films with a Dzyaloshinskii–Moriya interaction (DMI) by adjusting two material parameters: perpendicular magnetic anisotropy characterized by the quality factor Q, and reduced DMI constant ${ m{Delta }}$. For a broad range of Q and ${ m{Delta }}$ parameters, the magnetization states are mapped in (Q, ${ m{Delta }}$) diagrams and characterized by the periodicity (p) of spatial distribution of magnetization and the mean value of the square of an out-of-plane normalized magnetization component $langle {m}_{z}^{2} angle $.

Trvalý link: http://hdl.handle.net/11104/0300149