Antichiral Ferromagnetism

Abstract

Here by combining a symmetry-based analysis with numerical computations we predict a new kind of magnetic ordering - antichiral ferromagnetism. The relationship between chiral and antichiral magnetic order is conceptually similar to the relationship between ferromagnetic and antiferromagnetic order. Without loss of generality, we focus our investigation on crystals with full tetrahedral symmetry where chiral interaction terms - Lifshitz invariants - are forbidden by symmetry. However, we demonstrate that leading chirality-related term leads to nontrivial smooth magnetic textures in the form of helix-like segments of alternating opposite chiralities. The unconventional order manifests itself beyond the ground state by stabilizing excitations such as domains and skyrmions in an antichiral form.

References in corpus (5)

• A new class of chiral materials hosting magnetic skyrmions beyond room temperature
• Vortices, skyrmions, and chirality waves in frustrated Mott insulators with a quenched periodic array of impurities
• Non-collinear ground state from a four-spin chiral exchange in a tetrahedral magnet
• Antichiral Ferromagnetism
• Exploring the Group Representation Theory of the Full Symmetry of Regular Tetrahedron

Cited by in corpus (7)

• Activating magnetoelectric optical properties by twisting antiferromagnetic bilayers
• Non-collinear ground state from a four-spin chiral exchange in a tetrahedral magnet
• Antichiral Ferromagnetism
• Quartic asymmetric exchange for two-dimensional ferromagnets with trigonal prismatic symmetry
• Signatures of quartic asymmetric exchange in a class of two dimensional magnets
• Reduced theory of symmetric and antisymmetric exchange interactions in nanowires
• Non-Lifshitz invariants corrections to Dzyaloshinskii-Moriya interaction energy