Far infrared properties of iron doped single crystal PbTe

Far infrared reflectivity spectra of single crystal PbTe samples doped with 0.2 at% Fe were measured in the temperature range between 10 K and 300 K. These spectra show very sharp and narrow dips below 120 cm(-1). The experimental data were numerically analyzed using a fitting procedure based on the...

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Published inJournal of Optoelectronics and Advanced Materials Vol. 10; no. 1; pp. 145 - 148
Main Authors Nikolic, P M, Lukovic, D, Konig, W, Nikolic, M V, Blagojevic, V, Vujatovic, S S, Savic, S, Stamenovic, B
Format Journal Article
LanguageEnglish
Published 01.01.2008
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Summary:Far infrared reflectivity spectra of single crystal PbTe samples doped with 0.2 at% Fe were measured in the temperature range between 10 K and 300 K. These spectra show very sharp and narrow dips below 120 cm(-1). The experimental data were numerically analyzed using a fitting procedure based on the plasmon-phonon interaction model. Two local modes were observed. The first one was noted between 130 cm(-1) and 170 cm(-1) depending on the temperature and the second more frequency stable one was noted at about 230 cm(-1).
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:1454-4164