Infrared reflection spectra and phonon modes of PbTiO3 polycrystalline thin film

Authors
Meng, XJ Chneg, JG Ye, HJ Yang, PX Guo, SL Chu, JH
Citation
Xj. Meng et al., Infrared reflection spectra and phonon modes of PbTiO3 polycrystalline thin film, J INF M W, 18(5), 1999, pp. 392-396
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF INFRARED AND MILLIMETER WAVES
ISSN journal
10019014 → ACNP
Volume
18
Issue
5
Year of publication
1999
Pages
392 - 396
Database
ISI
SICI code
1001-9014(199910)18:5<392:IRSAPM>2.0.ZU;2-#
Abstract
Polycrystalline PbTiO3 thin film deposited on Si substrate by sol-gel techn ique was studied by infrared spectroscopy at room temperature. Eight phonon modes were observed in the spectra, which locate at 81,155,207,300,344,460 ,500 and 621cm(-1), respectively. Among these phonon modes, two modes at 30 0 and 460cm(-1) have not been reported before. All modes but the one at 155 cm(-1) were observed shift downward in far-infrared spectra, and the factor s which may cause the shift were discussed.