Far infrared reflectivity spectra of lead-telluride doped with Ytterbium

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 in...

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Bibliographic Details
Published in:Journal of alloys and compounds 2008-10, Vol.466 (1), p.319-322
Main Authors: Nikolic, P.M., Lukovic, D., Vujatovic, S.S., Paraskevopoulos, K.M., Nikolic, M.V., Blagojevic, V., Zorba, T.T., Stamenovic, B., König, W.
Format: Article
Language:English
Subjects:
Chalcogenides
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Far infrared reflectivity
Iii-v and ii-vi semiconductors
Infrared and raman spectra and scattering
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Physics
Rare-earth element
Semiconductors
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Summary: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.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2007.11.076