EPR study of Mn-implanted single crystal plates of TiO2 rutileSingle crystals of Mn-implanted Ti
O2 rutile have been investigated by electron paramagnetic
Coloration of natural beryl by iron ion implantation connected with charge-transfers
O2-→FeVI 3+ and
O2-→FeIV 2+, FeIV 3+ determine the yellow tone in colored