Far infrared study of impurity local modes in Pr doped PbTe
Samo za registrovane korisnike
AutoriNikolić, Pantelija M.
Paraskevopoulos, Konstantinos M.
Nikolić, Maria Vesna
Vujatović, Stevan S.
Zorba, Triantafyllia T.
Luković Golić, Danijela
Blagojević, Vladimir D.
Bojičić, Aleksandar I.
Članak u časopisu (Objavljena verzija)
MetapodaciPrikaz svih podataka o dokumentu
Single crystal samples of lead telluride doped with Pr were produced using the Bridgman method. Far infrared spectra of the samples doped with 0.15 at%, 0.25 at% and 0.6 at% Pr 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 local modes of praseodium were observed at about 158 cm-1 and 257 cm-1 at room temperature. The origin of the local modes was discussed. © 2008 Elsevier B.V. All rights reserved.
Ključne reči:semiconductors / chalcogenides / infrared spectroscopy
Izvor:Materials Chemistry and Physics, 2009, 114, 1, 185-187