Evolution of magnetization textures in Mn1.4PtSn under magnetic field

Abstract： In this study, we used Lorentz transmission electron microscopy (LTEM) and the transport of intensity equation (TIE) method to investigate the spin structures in the Mn1.4PtSn magnet, which exhibits D2d symmetry. Our goal was to observe how these spin structures evolve under the influence of an external magnetic field. In particular, the application of a perpendicular field was able to modulate the stripe domain widths and induce the formation of anti-skyrmions. While an in-plane magnetic field can control the state of these anti-skyrmions, the coexistence of different skyrmions suggests that the hysteresis properties of the magnet may affect the effectiveness of the field control.