Tunable room temperature magnetic skyrmions in centrosymmetric kagome magnet MnGaSn
arXiv:2112.11259 · doi:10.1038/s42005-022-00971-7
Abstract
The successful realization of skyrmion-based spintronic devices depends on the easy manipulation of underlying magnetic interactions in the skyrmion-hosting materials. Although the mechanism of skyrmion formation in non-centrosymmetric magnets is comprehensively established, the stabilization process of different skyrmion-like magnetic textures in centrosymmetric magnets needs further investigation. Here, we utilize Lorentz transmission electron microscopy study to report the finding of a tunable skyrmion lattice up to room temperature in a centrosymmetric kagome ferromagnet MnGaSn. We demonstrate that a controlled switching between the topological skyrmions and non-topological type-II magnetic bubbles can be realized at the optimal magnetic anisotropy. We find that the topological skyrmions are the energetically most stable magnetic objects in the centrosymmetric hexagonal magnets, whereas application of in-plane magnetic field stabilizes type-II magnetic bubbles as an excited state. The present study is a significant step towards understanding of the skyrmion stabilization mechanism in centrosymmetric materials for their future applications.
24 pages, 26 figures
References in corpus (7)
- A new class of chiral materials hosting magnetic skyrmions beyond room temperature
- Long wavelength helimagnetic order and skyrmion lattice phase in Cu2OSeO3
- Nanometric square skyrmion lattice in a centrosymmetric tetragonal magnet
- Magnetic phase diagram of MnSi inferred from magnetization and ac susceptibility
- Spirit: Multifunctional Framework for Atomistic Spin Simulations
- Current-Controlled Topological Magnetic Transformations in a Nanostructured Kagome Magnet
- Observation of Topological Hall Effect and Signature of Room Temperature Antiskyrmions in Mn-Ni-Ga D2d Heusler magnets
Cited by in corpus (9)
- Quantum states and intertwining phases in kagome materials
- Skyrmion fluid and bimeron glass protected by a chiral spin liquid on a kagome lattice
- Magnonic Hall Effect and Magnonic Holography of Hopfions
- Skyrmion-Bubble Bundles in an X-type Sr2Co2Fe28O46 Hexaferrite above Room Temperature
- Skyrmion Crystals in the Triangular Kondo Lattice Model
- Observation of Hybrid Magnetic Skyrmion Bubbles in Fe3Sn2 Nanodisks
- Current-Controlled Skyrmion Number in Confined Ferromagnetic Nanostripes
- Spin order dependent skyrmion stabilization in MnFeCoGe hexagonal magnets
- Experimental progress in Eu(Al,Ga) topological antiferromagnets