Critical magnetic behavior of uranium monosulphide

A detailed magnetization study has been made on ferromagnetic US near its Curie temperature. The critical exponent values ν, ν and delta have been determined, and are close to those found earlier for UTe. The scaling law and then the homogeneous equation of state are exactly satisfied. We also present the tentative results of our analysis of the α exponent, deduced from the heat capacity data of Flotow et al. Our findings are summarized and compared with those previously reported for US and UTe. (orig.)