Attenberger, Thomas and Bogner, U. and Jones, G. D. and Murdoch, K. M. (1997) Barrier crossing of H- and D- ions in CS(2) centers of hydrogenated SrF2 : Pr3+. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 58 (10). pp. 1513-1519. ISSN 0022-3697
Full text not available from this repository.Abstract
By laser selective excitation and thermal cycling techniques, we studied photo-transformation and their reverting processes for the CS(2) center present in deuterated and hydrogenated SrF2:Pr3+ crystals. Excitation with a narrow-band laser produces persistent spectral holes and a spectral re-distribution within the inhomogeneously-broadened absorption line. Using a laser with a linewidth comparable to the absorption line we measured both reversible polarized-bleaching reorientations and photo-induced formation of a distinct photoproduct center. We measured the reverting temperatures of both the reoriented centers and photoproduct centers. The temperature for reverting CS*(2) photoproduct centers is 82 +/- 3 K, whereas the temperature for reverting reorientated CS(2) centers is 101 +/- 3 K. The reverting temperatures for reorientation are identical for the H- and D- varieties of this center. These results are explained by barrier crossing in-asymmetric double-well potentials and the respective barrier energies are estimated. (C) 1997 Elsevier Science Ltd.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CRYSTALS; SPECTROSCOPY; SYSTEMS; inorganic compounds; optical materials; defects; luminescence; phonons |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 28 Mar 2023 08:08 |
| Last Modified: | 28 Mar 2023 08:08 |
| URI: | https://pred.uni-regensburg.de/id/eprint/50529 |
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