Formation mechanism of helical Q structure in Gd-based skyrmion materials

Takuya Nomoto, Takashi Koretsune, Ryotaro Arita

Using the ab initio local force method, we investigate the formation mechanism of the helical spin structure in GdRu${}_2$Si${}_2$ and Gd${}_2$PdSi${}_3$. We calculate the paramagnetic spi…