THE EXPERIMENTAL-OBSERVATION OF THE POTENTIAL BARRIER FOR SELF-TRAPPED EXCITON DECAY INTO F-H PAIR IN KCL-NA CRYSTALS

Authors
CHERNOV SA GAVRILOV VV
Citation
Sa. Chernov et Vv. Gavrilov, THE EXPERIMENTAL-OBSERVATION OF THE POTENTIAL BARRIER FOR SELF-TRAPPED EXCITON DECAY INTO F-H PAIR IN KCL-NA CRYSTALS, Radiation effects and defects in solids, 135(1-4), 1995, pp. 773-777
Citations number
9
Categorie Soggetti
Physics, Condensed Matter","Nuclear Sciences & Tecnology
Journal title
Radiation effects and defects in solids → ACNP
ISSN journal
10420150
Volume
135
Issue
1-4
Year of publication
1995
Pages
773 - 777
Database
ISI
SICI code
1042-0150(1995)135:1-4<773:TEOTPB>2.0.ZU;2-6
Abstract
The optical absorption induced by the electron pulse irradiation of Na + doped KCl has been measured. Transient optical absorption band of F- A centers was observed at 80 K (LNT). The temperature dependence of F- A center formation was studied. It is proposed that the obtained activ ation energy originates from the potential barrier between the STE per turbed by the cation impurity and the nearest neighbour F-A-H pair. Th e mechanism of the suppression of the defect formation by the monovale nt cation impurity in alkali halide crystals is discussed.