Magnetooptical properties of weak ferromagnets
Krinchik G.S., Zubov V.E.
It is shown that anomalously large magnetooptical effects in weak ferromagnets are due not to the absolute value of the resultant magnetic moment nor to its reorientation, but to the antiferromagnetism-vector reorientation that accompanies the magnetization reversal of the weak ferromagnet. Effects of the destruction of the surface magnetism of hematite by an external magnetic field were observed during the course of the experiment.