Interaction of in-plane magnetic skyrmions with 90 degrees magnetic domain walls: micromagnetic simulations

0557790 - FZÚ 2023 RIV US eng J - Článek v odborném periodiku
Baláž, Pavel
Interaction of in-plane magnetic skyrmions with 90 degrees magnetic domain walls: micromagnetic simulations.
Physical Review Applied. Roč. 17, č. 4 (2022), č. článku 044031. ISSN 2331-7019. E-ISSN 2331-7019
Grant CEP: GA ČR GX19-28594X
Institucionální podpora: RVO:68378271
Klíčová slova: skyrmions * domain walls * ferroelectrics * magnetization dynamics * spin transfer torque
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 4.6, rok: 2022
Způsob publikování: Omezený přístup
https://doi.org/10.1103/PhysRevApplied.17.044031

90 degrees pinned magnetic domain walls can be observed in thin magnetic layers attached to a ferroelectric substrate. The main stabilization mechanism of the noncollinear magnetic texture is the strain transfer, which is responsible for imprinting of the ferroelectic domains into the uniaxial anisotropy of the ferromagnet. Here, we investigate by means of micromagnetic simulations how the interfacial Dzyaloshinskii-Moriya interaction influences the 90° domain-wall structure. It is shown that Dzyaloshinskii-Moriya interaction induces a large out-of-plane magnetization component, strongly dependent on the domain wall type. In particular, it is shown that this out-of-plane magnetization component is crucial for the transport of the in-plane magnetic skyrmions, also known as bimerons, through the magnetic domain walls. Based on the results of micromagnetic simulations, a concept of in-plane magnetic skyrmion valve based on two 90° pinned magnetic domain walls is introduced.
Trvalý link: https://hdl.handle.net/11104/0333681