TRANSPORT AND THERMAL-PROPERTIES OF AMORPHOUS MN-Y ALLOYS

The thermal conductivity kappa, thermal diffusivity alpha and electric al resistivity rho were measured between 15K and 150K for Mn100-XYX bi nary amorphous alloys which were prepared by high rate dc sputtering. alpha was measured quasi-simultaneously with kappa by an arbitrary hea ting method. No anomaly associated with spin glass transition was obse rved in transport properties. The specific heat C was estimated from t he relation C=kappa/alpha, which indicated the Debye temperature Theta (D) approximate to 250K for Mn52Y48.