Magnetic antiskyrmions in two-dimensional van der Waals magnets engineered by layer stacking

Abstract

Antiskyrmions, like skyrmions, are topologically protected magnetic quasiparticles, but exhibit greater stability and no transverse motion compared to skyrmions. This study employs $a\phantom{\rule{0}{0ex}}b$ $i\phantom{\rule{0}{0ex}}n\phantom{\rule{0}{0ex}}i\phantom{\rule{0}{0ex}}t\phantom{\rule{0}{0ex}}i\phantom{\rule{0}{0ex}}o$ calculations to investigate the polar layer stacking of two monolayers of a two-dimensional magnetic material CrI${}_{3}$, which can lead to the emergence of antiskyrmions. Atomistic spin dynamics simulations demonstrate the realization of antiskyrmions in Mn-doped CrI${}_{3}$ and shows that their spin texture can be switched by ferroelectric polarization of the polar bilayer.