53Cr3+ ions in yttrium orthosilicate crystals

Abstract The optical absorption and electron paramagnetic resonance (EPR) spectra were investigated in Czochralski grown Y2SiO5 single crystal doped by 53Cr isotope. For the first time, EPR signals of Cr3+ ions localized in two physically non-equivalent yttrium positions were detected in this crystal. The parameters of the fine and hyperfine structures of the observed centers have been determined.