Far infrared reflectivity spectra of lead-telluride doped with Ytterbium
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АуториNikolić, Pantelija M.
Luković Golić, Danijela
Vujatović, Stevan S.
Paraskevopoulos, Konstantinos M.
Nikolić, Maria Vesna
Blagojević, Vladimir D.
Zorba, Triantafyllia T.
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Single crystal samples of lead-telluride doped with Ytterbium were made using the Bridgman method. Far infrared reflectivity spectra in the temperature range from 10 to 300 K were measured. Analysis of the experimental spectra was made using a fitting procedure based on the model of plasma-phonon interactions and the optical parameters were calculated. Two local impurity modes of Ytterbium were observed at about 160 and 250 cm-1. © 2007.
Кључне речи:chalcogenides / far infrared reflectivity / rare-earth elements / semiconductors
Извор:Journal of Alloys and Compounds, 2008, 466, 1-2, 319-322