Fe3GaTe2 is a room temperature van der Waals ferromagnet, which, despite having a centrosymmetric crystal structure, has both a large Dzyaloshinskii-Moriya interaction and hosts topological spin textures. Here, Xia, Luo, Malik and coauthors unravel this mystery, showing the critical role of field cooling in the breaking of inversion symmetry in Fe3GaTe2.
