Designing layered 2D skyrmion lattices in moiré magnetic hetero-structures
arXiv:2302.01074 · doi:10.1002/admi.202300188
Abstract
Skyrmions are promising for the next generation of spintronic and magnonic devices, but their zero-field stability and controlled nucleation through chiral interactions remain challenging. In this theoretical study, we explore the potential of moiré magnetic heterostructures to generate ordered skyrmion lattices from the stacking-dependent magnetism in 2D magnets. We consider heterostructures formed by twisting ultrathin CrBr_3 films on top of CrI_3 substrates, assuming a moderate interfacial Dzyaloshinskii-Moriya interaction. At large moiré periodicity and appropriate substrate thickness, a moiré skyrmion lattice emerges in the interfacial CrBr_3 layer due to the weaker exchange interactions in CrBr_3 compared to CrI_3. This lattice is then projected to the remaining layers of the CrBr_3 film via emergent chiral interlayer fields. By varying the pristine stacking configurations within the ultrathin CrBr_3 film, we realize layered ferromagnetic and antiferromagnetic skyrmion lattices without the need for a permanent magnetic field. Our findings suggest the possibility of creating colorful skyrmion lattices in moiré magnetic heterostructures, enabling further exploration of their fundamental properties and technological relevance.
References in corpus (47)
- Layer-dependent Ferromagnetism in a van der Waals Crystal down to the Monolayer Limit
- Discovery of intrinsic ferromagnetism in 2D van der Waals crystals
- Skyrmion Lattice in a Chiral Magnet
- Advances in the Physics of Magnetic Skyrmions and Perspective for Technology
- Spontaneous Skyrmion Ground States in Magnetic Metals
- Blowing Magnetic Skyrmion Bubbles
- Giant Tunneling Magnetoresistance in Spin-Filter van der Waals Heterostructures
- Skyrmions at room temperature : From magnetic thin films to magnetic multilayers
- Additive interfacial chiral interaction in multilayers for stabilization of small individual skyrmion at room temperature
- Atomistic spin model simulations of magnetic nanomaterials
- Tunable Room Temperature Magnetic Skyrmions in Ir/Fe/Co/Pt Multilayers
- Stacking-Dependent Magnetism in Bilayer CrI
- Beyond skyrmions: Review and perspectives of alternative magnetic quasiparticles
- Direct observation of van der Waals stacking dependent interlayer magnetism
- Skyrmions in Magnetic Multilayers
- Giant and nonreciprocal second harmonic generation from layered antiferromagnetism in bilayer CrI3
- Stacking tunable interlayer magnetism in bilayer CrI3
- Skyrmions and Anomalous Hall Effect in a Dzyloshinskii-Moriya Spiral Magnet
- Observation of Magnetic Skyrmion Bubbles in a van der Waals ferromagnet Fe3GeTe2
- Interplay between Kitaev interaction and single ion anisotropy in ferromagnetic CrI and CrGeTe monolayers
- Néel-type skyrmion in WTe2/Fe3GeTe2 van der Waals heterostructure
- Skyrmions in the moiré of van der Waals 2D magnets
- Magnetic Skyrmion State in Janus Monolayers of Chromium Trihalides Cr(I,X)3
- Topological magnetic-spin textures in two-dimensional van der Waals Cr2Ge2Te6
- Fundamental Spin Interactions Underlying the Magnetic Anisotropy in the Kitaev Ferromagnet CrI
- Néel-type skyrmions and their current-induced motion in van der Waals ferromagnet-based heterostructures
- Magnetically Switchable Light-Matter Interaction in the Two-Dimensional Magnet CrI3
- Van der Waals spin valves
- Meron-Like Topological Spin Defects in Monolayer CrCl3
- Twist engineering of the two-dimensional magnetism in double bilayer chromium triiodide homostructures
- Moiré skyrmions and chiral magnetic phases in twisted CrX (X I, Br, Cl) bilayers
- Properties and dynamics of meron topological spin textures in the two-dimensional magnet CrCl3
- Stacking Domain Wall Magnons in Twisted van der Waals Magnets
- Evidence of Noncollinear Spin Texture in Magnetic Moiré Superlattices
- Skyrmions in twisted van der Waals magnets
- Magnetization textures in twisted bilayer 2D CrX (X=Br, I)
- Moiré magnons in twisted bilayer magnets with collinear order
- An electron-counting rule to determine the interlayer magnetic coupling of the van der Waals materials
- Magnetic skyrmion lattices in a novel two-dimensional twisted bilayer magnet
- Heterobilayer moiré magnets: moiré skyrmions and the commensurate-incommensurate transition
- Theory of magnetism in the van der Waals magnet CrI3
- Emergence of electric-field-tunable interfacial ferromagnetism in 2D antiferromagnet heterostructures
- Magnon magic angles and tunable Hall conductivity in 2D twisted ferromagnetic bilayers
- Whirling interlayer fields as a source of stable topological order in moiré CrI3
- A hierarchy of multi-moment skyrmion phases in twisted magnetic bilayers
- Tunable Strong Magnetic Anisotropy in Two-Dimensional van der Waals Antiferromagnets
- Theoretical investigation of antiferromagnetic skyrmions in a triangular monolayer