Magnetic and electric properties of the metallic kagome antiferromagnet CrRhAs

Antiferromagnetic kagome metals remain far less explored than their ferromagnetic counterparts, despite predictions of unconventional spin textures and emergent transport phenomena. Here, the authors report the growth of single crystals of the metallic kagome antiferromagnet CrRhAs and investigate its magnetic and electronic properties. While no nonlinear Hall effect is observed, Hall measurements reveal an unexpected sign reversal upon changing the current direction, together with a pronounced enhancement below the antiferromagnetic transition. These findings point to a strong coupling between magnetic order and an anisotropic electronic structure, highlighting CrRhAs as a promising platform for exploring transport phenomena in antiferromagnetic kagome metals.