Pressure-tuning domain-wall chirality in noncentrosymmetric magnetic Weyl semimetal CeAlGe

Topological magnetic Weyl semimetals have been proposed to host controllable chiral domain walls which bear a great prospect in device applications. To exploit them applications, it is important proper way tune and manipulate these walls. One possible means through magnetoelastic coupling. The involvement of rare earth the lately $R$Al$X$ ($R$=rare earth, $X$=Si Ge) family may provide such platform. Here we present transport thermodynamic properties CeAlGe under hydrostatic pressure. We find that pressure enhances antiferromagnetic exchange but essentially retains its structure. Large topological Hall effect with pronounced loop shape observed within magnetically ordered state, splits into two regions Such an unusual electromagnetic response inferred be consequence unprecedented concomitance evolution reentrance order strongly suggest capability switching on/off this noncentrosymmetric via