Magnetic bimerons as skyrmion analogues in in-plane magnets

Abstract

A magnetic bimeron is a pair of two merons and can be understood as the in-plane magnetized version of a skyrmion. Here we theoretically predict the existence of single magnetic bimerons as well as bimeron crystals, and compare the emergent electrodynamics of bimerons with their skyrmion analogues. We show that bimeron crystals can be stabilized in frustrated magnets and analyze what crystal structure can stabilize bimerons or bimeron crystals via the Dzyaloshinskii-Moriya interaction. We point out that bimeron crystals, in contrast to skyrmion crystals, allow for the detection of a pure topological Hall effect. By means of micromagnetic simulations, we show that bimerons can be used as bits of information in in-plane magnetized racetrack devices, where they allow for current-driven motion for torque orientations that leave skyrmions in out-of-plane magnets stationary.

6 pages, 3 figures

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• Bimeron Clusters in Chiral Antiferromagnets
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• Homochiral antiferromagnetic merons, antimerons and bimerons realized in synthetic antiferromagnets
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• Nonzero Skyrmion Hall Effect in Topologically Trivial Structures
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• Skyrmion instabilities and distorted spiral states in a frustrated chiral magnet
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• Current-Induced Dynamics of Chiral Magnetic Structures: Creation, Motion, and Applications
• Antiskyrmions and their electrical footprint in crystalline mesoscale structures of Mn${}_{1.4}$PtSn
• Quartic asymmetric exchange for two-dimensional ferromagnets with trigonal prismatic symmetry
• Magnetic Bimeron Traveling on the Domain Wall
• Meron configurations in easy-plane chiral magnets
• Angular dependence of Hall effect and magnetoresistance in SrRuO${}_3$-SrIrO${}_3$ heterostructures
• Topological invariants of vortices, merons, skyrmions, and their combinations in continuous and discrete systems
• A route towards stable homochiral topological textures in A-type antiferromagnets
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• Spin waves in skyrmionic structures with various topological charges
• Semi-realistic tight-binding model for Dzyaloshinskii-Moriya interaction
• Magnonics along the wall in Bimeron Chain Domain Walls
• Regular and in-plane skyrmions and antiskyrmions from boundary instabilities
• Signal detection based on the chaotic motion of an antiferromagnetic domain wall
• All-electric control of skyrmion-bimeron transition in van der Waals heterostructures
• Weak Localization in Systems with Chiral Spin Textures and Skyrmion Crystals
• Manipulation of topology by electric field in breathing kagome lattice
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• Creation of domain-wall Skyrmions in chiral magnets
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• Hybrid Skyrmions in Magnetic Multilayer Thin Films are Half-Integer Hopfions
• Bimeron Crystals by a Linearly Polarized AC Electric Field in Frustrated Magnets
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