Aa. Gippius et At. Collins, DEFECT-INDUCED STRUCTURE OF THE 991.8 NM TITANIUM LUMINESCENCE LINE IN DIAMOND, Solid state communications, 88(8), 1993, pp. 637-638
Low temperature measurements of Ti luminescence in ion-implanted natur
al diamond reveal fine structure in the zero-phonon line 991.8 nm. Thi
s structure is attributed to the formation of some loose impurity-defe
ct complexes which seems to be specific for titanium and different fro
m the behaviour of other transition element impurities.