Long period helical structures and twist-grain boundary phases induced by non magnetic ion doping in Mn${}_{1-x}$(Co,Rh)${}_x$Ge chiral magnet

N. Martin, M. Deutsch, G. Chaboussant +6

We study the evolution of helical magnetism in MnGe chiral magnet upon partial substitution of Mn for non magnetic 3d-Co and 4d-Rh ions. At high doping levels, we observe spin heli…