Optical and electron spin resonance spectroscopy of Ti3+ and Ti4+ in Al2O3

@inproceedings{Yamaga1994OpticalAE,
  title={Optical and electron spin resonance spectroscopy of Ti3+ and Ti4+ in Al2O3},
  author={Mitsuo Yamaga and Taturu Yosida and S. Hara and Nobuhiro Kodama and Brian Henderson},
  year={1994}
}
The absorption spectrum of Ti3+:Al2O3 crystals grown in a reducing atmosphere consists of the main blue‐green absorption band and a weak infrared band. This infrared absorption decreases in intensity on annealing the as‐grown samples in a reducing atmosphere. The analysis of electron spin resonance spectra of the as‐grown samples, in which the infrared absorption band is observed, indicates that the center associated with the band is a cluster involving Ti3+ and Ti4+ ions with a neighboring… CONTINUE READING