20.500.12556/DKUM-26465 Raman spectroscopy of multiphonon emission process in Ni-doped PbTe In this paper, we present room temperature unpolarized Raman scattering spectra of Ni doped PbTe single crystal sample. Crystal of PbTe(Ni) was grown by the Bridgman method. The Ni concentration in the sample used here was 1* 1019 at./cm3. Well resolved peaks appear at about 126, 143, 181, 362 and 724 cm-1. The modes at 126 and 143 cm-1, which are also observed in other telluride compounds, originate from vibrations in TeO2. We assume that the mode at about 181 cm-1 is connected to excitations of a local phonon mode in the vicinity of an impurity atom (donor Ni3+ state). Modes at about 362 cm-1 and 724 cm-1 are the second and fourth harmonic of a local phonon mode, registered here due to multiphonon emission. crystals Raman scattering true true false Angleški jezik Angleški jezik Neznano 2012-05-31 13:46:00 2012-05-31 13:46:00 2022-04-15 03:41:45 2024-01-03 03:28:00 2009 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 539 13319446 0587-4246 URN:SI:UM:DK:BSALIIJV http://przyrbwn.icm.edu.pl/APP/ABSTR/116/a116-1-21.html 1 https://dk.um.si/Dokument.php?lang=slv&id=35484 Fakulteta za strojništvo 0 0 0