%0 Journal Article %T The mechanism of magnitooptic activity of the rе-ion thulium-ittrium of garnet-aluminat tm3+:yag %A Mukhammadiev, A.. %A Zhuraeva, N.. %A Normurodov, E.. %K rare earth ion, thulium-yttrium garnet aluminate, crystalline field, multiplets, magnetic circular polarization of iuminescence, Stark sub-levels %J Actual directions of scientific researches of the XXI century: theory and practice %D 2014 %N 2 %P 3 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov