Chirality coupling in topological magnetic textures with multiple magnetochiral parameters.

ABSTRACT: Chiral effects originate from the lack of inversion symmetry within the lattice unit cell or sample's shape. Being mapped onto magnetic ordering, chirality enables topologically non-trivial textures with a given handedness. Here, we demonstrate the existence of a static 3D texture characterized by two magnetochiral parameters being magnetic helicity of the vortex and geometrical chirality of the core string itself in geometrically curved asymmetric permalloy cap with a size of 80 nm and a vortex ground state. We experimentally validate the nonlocal chiral symmetry breaking effect in this object, which leads to the geometric deformation of the vortex string into a helix with curvature 3 μm^-1 and torsion 11 μm^-1. The geometric chirality of the vortex string is determine

SUBMITTER: Volkov OM 

PROVIDER: S-EPMC10023801 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature