Far-Infrared Study of DX-Like Centers in Pb0.95Mn0.05Te(Ga) |
| D. Stojanović a, J. Trajić a, B. Hadž ić a, M. Romč ević a, I.I. Ivanchik b, D.R. Khokhlov b and N. Romč ević a
a Institute of Physics, Pregrevica 118, 11080 Belgrade, Serbia b Moscow State University, 119899 Moscow, Russia |
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| Received: 3 09 2007; |
| We present far-infrared reflection spectra of Pb0.95Mn0.05Te single crystal doped with gallium between 10 and 300 K. The analysis of the far-infrared reflection spectra was made by a fitting procedure based on the model of coupled oscillators. Together with the strong plasmon-phonon coupling we obtain three local modes of gallium at about 122 cm-1, 166 cm-1, and 192 cm-1. The position of these modes depends on impurity center charge, and their intensity depends on temperature. |
| DOI: 10.12693/APhysPolA.112.959 PACS numbers: 71.28+d, 78.20.-e, 63.20.Pw |