Disorder effects and resonant features in Raman spectra of electron-irradiated GaP and CdS crystals

Authors
Azhniuk, YM Gomonnai, AV Goyer, DB Megela, IG Kranjcec, M Lopushansky, VV
Citation
Ym. Azhniuk et al., Disorder effects and resonant features in Raman spectra of electron-irradiated GaP and CdS crystals, PHYS ST S-B, 227(2), 2001, pp. 595-603
Citations number
36
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA STATUS SOLIDI B-BASIC RESEARCH
ISSN journal
03701972 → ACNP
Volume
227
Issue
2
Year of publication
2001
Pages
595 - 603
Database
ISI
SICI code
0370-1972(200110)227:2<595:DEARFI>2.0.ZU;2-J
Abstract
Electron-irradiated (by 7-14 MeV electrons) Gal? and CdS crystals and CdS-b ased solid solutions were studied by Raman scattering. Disorder-activated a coustic phonon bands are revealed in the GaP spectrum with increase of the irradiation dose. Broadening of the TO-phonon band in irradiated GaP sample s is observed. The behaviour of the LO- and 2LO-phonon resonant Raman scatt ering versus irradiation dose is discussed, the resonant conditions being t uned by variation of exciting light energy and crystal composition.