Spontaneous magnetic skyrmions in single-layer CrInX3(X=Te, Se)

Abstract

The realization of magnetic skyrmions in nanostructures holds great promise for both fundamental research and device applications. Despite recent progress, intrinsic magnetic skyrmions in two-dimensional lattice are still rarely explored. Here, using first-principles calculations and Monte-Carlo simulations, we report the identification of spontaneous magnetic skyrmions in single-layer CrInX3 (X = Te, Se). Due to the joint effect of broken inversion symmetry and strong spin-orbit coupling, inherent large Dzyaloshinskii-Moriya interaction occurs in both systems, endowing the intriguing Neel-type skyrmions in the absence of magnetic field. By further imposing moderate magnetic field, the skyrmion phase can be obtained and is stable within a wide temperature range. Particularly for single-layer CrInTe3, the size of skyrmions is sub-10 nm and the skyrmion phase can be maintained at an elevated temperature of 180 K. In addition, the phase diagrams of their topological spin textures under the variation of magnetic parameters of D, J, and K are mapped out. Our results greatly enrich the research of 2D skyrmionics physics.

References in corpus (6)

• Quantum ESPRESSO: a modular and open-source software project for quantum simulations of materials
• Spontaneous Skyrmion Ground States in Magnetic Metals
• Additive interfacial chiral interaction in multilayers for stabilization of small individual skyrmion at room temperature
• Skyrmions in Magnetic Multilayers
• Magnetic Skyrmions for Unconventional Computing
• Magnetic Skyrmions in Atomic Thin CrI${}_3$ Monolayer

Cited by in corpus (12)

• Strain-Driven Zero-Field Near-10 nm Skyrmions in Two-Dimensional van der Waals Heterostructures
• Switching intrinsic magnetic skyrmions with controllable magnetic anisotropy in van der Waals multiferroic heterostructures
• Tuning the magnetic interactions in van der Waals Fe${}_3$GeTe${}_2$ heterostructures: A comparative study of \textit{ab initio} methods
• Magnonic Hall Effect and Magnonic Holography of Hopfions
• Multiple Topological Magnetism in van der Waals Heterostructure of MnTe2/ZrS2
• Manipulation of magnetic topological textures via perpendicular strain and polarization in van der Waals magnetoelectric heterostructure
• Enhanced Curie temperature and skyrmion stability in room temperature ferromagnetic semiconductor CrISe monolayer
• Prediction of stable nanoscale skyrmions in monolayer Fe${}_5$GeTe${}_2$
• Modulation of skyrmionic magnetic textures in two-dimensional vdW materials and their heterostructures
• From chiral spin liquids to skyrmion fluids and crystals, and their interplay with itinerant electrons
• Emergent Self-propulsion of Skyrmionic Matter in Synthetic Antiferromagnets
• Long lifetimes of nanoscale skyrmions in lithium-decorated van der Waals ferromagnet Fe${}_3$GeTe${}_2$