Magnetic Anisotropy of Cr1-xTe with x=0.077

The temperature dependence of the direction of the easy axis of magnetization in the ferromagnetic compound Cr 1- x Te ( x =0.077, T c =342 K) is determined by single crystal magnetic and neutron diffraction measurements in the temperature range from 80 K to 350 K. Below about 200 K the spin direction lies in the c -plane, but with the rise of temperature it stands up gradually towards the c -axis. At 293 K the spin lies in a direction intermediary between c -axis and c -plane. The result is not in accord with Hirone et al. 's according to which the anisotropy axis lies along the c -axis all the way from liquid helium temperature to room temperature. The discrepancy is attributed to the difference in x between their sample and ours.