Magnetic And Transport Properties Of New Ternary Uranium-Based Germanide U2rh3ge5

A new ternary uranium germanide U(2)Rh(3)Ge(5)has been successfully synthesized and investigated by means of magnetic susceptibility chi(T,H), isothermal magnetizationM(T,H), electrical resistivity rho(T), and specific heatC(T,H) measurements. This compound is found to crystallize in the U2Co3Si5-type orthorhombic structure. The low-field chi(T) shows a clear peak atT(N)= 41.5 K corresponding to an antiferromagnetic transition. TheM(H) curve measured up to 70 kOe exhibits anH-linear behavior at 2 K with very small induced magnetic moments, while it shows upward curvature with increasing temperature, implying the possible presence of a metamagnetic transition in high-field region above 70 kOe. As the temperature decreases,rho(T) increases slowly atT>T(N)and decreases rapidly atT更多