Origin of the radiation-induced 420 nm color center absorption band in PbWO4 crystals

Authors
Lin, QS Feng, XQ Man, ZY Zhang, YX Yin, ZW Zhang, QR
Citation
Qs. Lin et al., Origin of the radiation-induced 420 nm color center absorption band in PbWO4 crystals, SOL ST COMM, 118(5), 2001, pp. 221-223
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SOLID STATE COMMUNICATIONS
ISSN journal
00381098 → ACNP
Volume
118
Issue
5
Year of publication
2001
Pages
221 - 223
Database
ISI
SICI code
0038-1098(2001)118:5<221:OOTR4N>2.0.ZU;2-0
Abstract
Polarized absorption spectra experiments were carried out to investigate th e structural symmetries of color centers of PbWO4 crystals. It was found th at the intensity of the electrical vector E perpendicular to c of the radia tion-induced 320 nm absorption band equals that of the E parallel to c, ind icating the non-dichroic character of the band. Based on the analysis of th e energy band structure and the crystal structure of PbWO4, the origin of t he radiation-induced 320 nm absorption band was ascribed to the V-F(0) di-h ole center. (C) 2001 Published by Elsevier Science Ltd.