The off-axis configuration of the FA centers in KF : Li+ has been evaluated from photostimulated reorientation experiments. We performed transient and kinetic measurements at 77 K of the crystal absorption coefficient and stationary emission measurements at 2 K. The experiments give an average off-axis angle θ = 14° ± 2°. Moreover, the spectral features of the FA (Li) emission band in KF have been determined, and the temperature dependence of the band width has been found to follow the expected behavior. © 1990.
DE MATTEIS, F., Rossi, M., Scacco, A., Somma, F., Baldacchini, G., Cremona, M., et al. (1990). Evaluation of the off-axis tilt of the FA center in KF : Li+. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 51(9), 1053-1059 [10.1016/0022-3697(90)90064-M].
Evaluation of the off-axis tilt of the FA center in KF : Li+
DE MATTEIS, FABIO;GRASSANO, UMBERTO MARIA
1990-01-01
Abstract
The off-axis configuration of the FA centers in KF : Li+ has been evaluated from photostimulated reorientation experiments. We performed transient and kinetic measurements at 77 K of the crystal absorption coefficient and stationary emission measurements at 2 K. The experiments give an average off-axis angle θ = 14° ± 2°. Moreover, the spectral features of the FA (Li) emission band in KF have been determined, and the temperature dependence of the band width has been found to follow the expected behavior. © 1990.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.