J. Phys. Colloques 49 (1988) C8-1235-C8-1236
MAGNETIC PROPERTIES OF AMORPHOUS DyxFe1-x THIN FILMST. Saito, J. Maedomari, K. Shinagawa et T. Tsushima
Department of Physics, Faculty of Science, Toho University, Funabashi, Chiba 274, Japan
Magnetic properties of amorphous DyxFe1-x (x = 0.15, 0.21, 0.25) with the random anisotropy and exchange were investigated by the measurements of magnetization and Hall effect vs. temperature and external field H. Speromagnetic behavior was shown in all samples measured for H = 1 kOe. A reentrant phenomenon from ferrimagnetic to speromagnetic behavior was observed for x = 0.25 with coherent perpendicular anisotropy. At H = 12 kOe, all samples show ferrimagnetic behavior.