Anisotropic Skyrmion and Multi-q Spin Dynamics in Centrosymmetric Gd2PdSi3
Phys. Rev. Lett. 134, 046702 (2025)
Matjaž Gomilšek has published a paper on topological magnetism as the leading author, in collaboration with co-authors from the UK, Switzerland, Germany, Canada, and Japan. In the paper they discover a pronounced directional dependence of magnetic dynamics in topologically-protected whirls of magnetization called skyrmions. The observed behavior is very unusual, since the studied material is highly symmetrical. The researchers also discover a strong directional dependence of magnetic dynamics in the previously unidentified ground state of the material, which suggests that it is the much-sought-after lattice of merons (“halves” of a skyrmion). These discoveries significantly contribute to solving the puzzle of the stability of topological magnetic textures in highly symmetrical materials.
Skyrmions can be used for data storage, spintronics (a magnetic analogue of electronics), or as a platform for advanced (reservoir-computing) artificial intelligence.
The discovery was also highlighted on the official website of the ISIS muon source at the STFC Rutherford Appleton Laboratory in the UK.
