Aa. Milner et al., SOFT AND RIGID PHOTOMAGNETISM IN YIG-CO FILMS MEASURED BY LINEAR DICHROISM, Journal of magnetism and magnetic materials, 140, 1995, pp. 2113-2114
Polarized light induced 'soft' and 'rigid' linear dichroism was found
in YIG:Co films. The 'rigid' photo-induced dichroism seems to be conne
cted with Co2+ in the tetrahedral side. The effect of optical anisotro
py memory was observed after heating and recooling of the sample.