The photostimulated reorientation of FA centers in RbCl:Li+ has been studied by means of luminescence and absorption measurements. Experimental data of both stationary and transient emission intensities have been interpreted on the basis of a theoretical model of the center reorientation. Such a treatment, already applied to similar FA centers in KCl:Li+, takes into account the influence on the reorientation process of two different phenomena: the overlap between the FA1 and FA2 absorption bands, where the luminescence is excited, and the off-axis configuration of the FA dipoles. The results allow for the first time a quantitative determination of the off-axis angle of FA centers in RbCl:Li+: 7°. © 1988 The American Physical Society.
Baldacchini, G., DE MATTEIS, F., Giovenale, E., Scacco, A., Somma, F., Grassano, U. (1988). Off-axis configuration of FA (Li) centers in RbCl. PHYSICAL REVIEW. B, CONDENSED MATTER, 37(12), 7014-7020 [10.1103/PhysRevB.37.7014].
Off-axis configuration of FA (Li) centers in RbCl
DE MATTEIS, FABIO;
1988-01-01
Abstract
The photostimulated reorientation of FA centers in RbCl:Li+ has been studied by means of luminescence and absorption measurements. Experimental data of both stationary and transient emission intensities have been interpreted on the basis of a theoretical model of the center reorientation. Such a treatment, already applied to similar FA centers in KCl:Li+, takes into account the influence on the reorientation process of two different phenomena: the overlap between the FA1 and FA2 absorption bands, where the luminescence is excited, and the off-axis configuration of the FA dipoles. The results allow for the first time a quantitative determination of the off-axis angle of FA centers in RbCl:Li+: 7°. © 1988 The American Physical Society.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
