In Pt-doped samples, co-doped with 1H and 2H, the principal g-values of the electron spin resonance signal of the Pt2H pair were found to differ significantly from that of the Pt1H pair; thus signifying the presence of an isotopic shift for the g-tensor. In similar samples, the energy level positions of the PtH pair and the PtH3 complex were determined from the results of photo-electron spin resonance studies. Two energy levels of the PtH pair were found to be positioned at Ec-0.47eV and Ev+0.56eV. The energy level of the PtH3 complex was found to be positioned at Ec-0.73eV.

Properties of Platinum-Hydrogen Complexes in Silicon - an ESR Study. T.Mchedlidze, N.Fukata, M.Suezawa: Japanese Journal of Applied Physics - 2, 2002, 41[9A], L967-9