Gradient-induced Dzyaloshinskii-Moriya interaction
arXiv:2212.05741 · doi:10.1021/acs.nanolett.2c03973
Abstract
The Dzyaloshinskii-Moriya interaction (DMI) that arises in the magnetic systems with broken inversion symmetry plays an essential role in topological spintronics. Here, by means of atomistic spin calculations, we study an intriguing type of DMI (g-DMI) that emerges in the films with composition gradient. We show that both the strength and chirality of g-DMI can be controlled by the composition gradient even in the disordered system. The layer-resolved analysis of g-DMI unveils its additive nature inside the bulk layers and clarifies the linear thickness dependence of g-DMI observed in experiments. Furthermore, we demonstrate the g-DMI induced chiral magnetic structures, such as spin spirals and skyrmions, and the g-DMI driven field-free spin-orbit torque (SOT) switching, both of which are crucial towards practical device application. These results elucidate the underlying mechanisms of g-DMI and open up a new way to engineer the topological magnetic textures.
arXiv commentin production in Nano Letters
References in corpus (29)
- Skyrmion Lattice in a Chiral Magnet
- Spin current and magneto-electric effect in non-collinear magnets
- Spontaneous Skyrmion Ground States in Magnetic Metals
- Magnetic switching by spin torque from the spin Hall effect
- Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems
- Role of the Dzyaloshinskii-Moriya interaction in multiferroic perovskites
- Dynamics of Dzyaloshinskii domain walls in ultrathin magnetic films
- Anatomy of Dzyaloshinskii-Moriya Interaction at Co/Pt Interfaces
- Interface-driven topological Hall effect in SrRuO-SrIrO bilayer
- Time- and spatially-resolved magnetization dynamics driven by spin-orbit torques
- Significant Dzyaloshinskii-Moriya Interaction at Graphene-Ferromagnet Interfaces due to Rashba-effect
- Field-free spin-orbit torque-induced switching of perpendicular magnetization in a ferrimagnetic layer with vertical composition gradient
- Electric-field control of anomalous and topological Hall effects in oxide bilayer thin films
- Deterministic magnetization switching using lateral spin-orbit torque
- Chiral symmetry breaking for deterministic switching of perpendicular magnetization by spin-orbit torque
- An alternative to the topological interpretation of the transverse resistivity anomalies in SrRuO3
- Unveiling the three-dimensional spin texture of skyrmion tubes
- Electrical switching of perpendicular magnetization in L10 FePt single layer
- Controllable thickness inhomogeneity and Berry-curvature-engineering of anomalous Hall effect in SrRuO3 ultrathin films
- Interpretation of experimental evidence of the topological Hall effect
- Electrically switchable Rashba-type Dzyaloshinskii-Moriya interaction and skyrmion in two-dimensional magnetoelectric multiferroics
- Spin-orbit torque driven chiral magnetization reversal in ultrathin nanostructures
- Topological Spin Hall Effect due to Magnetic Skyrmions
- Quantifying the Dzyaloshinskii-Moriya Interaction Induced by the Bulk Magnetic Asymmetry
- Dzyaloshinskii-Moriya interaction at disordered interfaces from ab initio theory: robustness against intermixing and tunability through dusting
- Spin-orbit coupling in single layer ferrimagnets: direct observation of spin-orbit torques and chiral spin textures
- Rashba-type Dzyaloshinskii-Moriya interaction, perpendicular magnetic anisotropy and skyrmion states at 2D materials/Co interfaces
- Hump-like structure in Hall signal from SrRuO ultra-thin films without inhomogeneous anomalous Hall effect
- Overheated Topological Hall Effect
Cited by in corpus (5)
- Room Temperature Magnetic Skyrmions in Gradient-Composition Engineered CoPt Single Layers
- Characterization of partially accessible anisotropic spin chains in the presence of anti-symmetric exchange
- Effect of Magnetic Anisotropy and Gradient-Induced Dzyaloshinskii-Moriya Interaction on the Formation of Magnetic Skyrmions
- Unraveling the Complexity of the Dzyaloshinskii-Moriya Interaction in Layered Magnets: The Full Magnitude and Chirality Control
- Asymmetric defect distribution generates bulk Dzyaloshinskii-Moriya interaction in Pt/Co/Pt