High field magnetization in DyCu

High field magnetization measurements up to 60 T in a single crystalline Dy Cu rare earth and non-magnetic transition metal compound have been performe d by using pulse magnets in Osaka University. The magnetization curves alon g [111], [110], and [100] axes show multistep behaviors due to spin rearran gement from the multiaxis spin structure of the ground state. For [111] dir ections, whole profile of magnetization curve with four metamagnetic transi tion is observed and the saturated moment is obtained to be 9.5 mu(B) for t he first time. Possible spin structures in each phases are proposed from th e relative value of the magnetization with introducing phenomenological ass umptions.