Special Session 126: Defects, Microstructures, and Failure: Multiscale Variational Models

Tuning chirality and the emergence of antiskyrmions
Christof Melcher
RWTH Aachen University
Germany
Co-Author(s):    
Abstract:
We investigate the role of anisotropic chirality in chiral field theories and its impact on the stabilization and emergence of antiskyrmions. Extending classical models of chiral magnetism, we incorporate direction-dependent Dzyaloshinskii-Moriya interactions to capture anisotropic symmetry breaking. This framework reveals that anisotropy fundamentally alters the topological energy landscape, enabling the formation of antiskyrmionic textures alongside conventional skyrmions. We analyze the conditions under which antiskyrmions are energetically favorable, emphasizing the interplay between crystalline symmetry, chirality, and external fields. Our results provide a unified theoretical perspective consistent with recent experimental observations and prior work on micromagnetic energy minimization, highlighting anisotropic chirality as a key mechanism for engineering topological spin structures in magnetic materials.