As. Lileev et al., LOW-TEMPERATURE MAGNETIZATION REVERSAL PROCESSES IN PERMANENT-MAGNETSBASED ON R(2)T(14)B, Journal of magnetism and magnetic materials, 158, 1996, pp. 373-375
The temperature dependence of the saturation magnetization, remanence
and coercivity in Nd-Fe-B alloys partially substituted by Tb, Dy and C
o was investigated in the temperature range 4.2-230 K. In addition to
a 'dip' in the demagnetization curve, both discontinuous changes in th
e magnetic moment and the influence of the magnetic history of the sam
ples were found in the demagnetization process at 4.2 K.