Authors: Nikolić, Pantelija
König, Wolfgang
Vujatović, Stevan
Blagojević, Vladimir
Luković, Danijela
Savić, Slavica
Radulović, Katarina
Urošević, Dragan 
Nikolić, Maria Vesna
Affiliations: Mathematical Institute of the Serbian Academy of Sciences and Arts 
Title: Far infrared properties of PbTe doped with cerium
Journal: Journal of Alloys and Compounds
Volume: 433
Issue: 1-2
First page: 292
Last page: 295
Issue Date: 16-May-2007
Rank: M21a
ISSN: 0925-8388
DOI: 10.1016/j.jallcom.2006.06.066
Single crystal samples of lead telluride doped with cerium were made using the Bridgman method. Far infrared reflectivity spectra in the temperature range from 10 to 300 K are presented. The experimental data were numerically analyzed using a fitting procedure based on the plasmon-phonon interaction model and optical parameters were determined. Two additional local modes were observed at about 138 and 337 cm-1. The origin of these local vibrational impurity modes was discussed.
Keywords: Chalcogenides | Infrared spectroscopy | Semiconductors
Publisher: Elsevier
Project: Ministry for Science and Environmental Protection of the Republic of Serbia, project B 6150

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