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N. ROMČEVIĆ1, J. TRAJIĆ1,* , M. ROMČEVIĆ1, D. STOJANOVIĆ1, T. A. KUZNETSOVA2, D. R. KHOKHLOV2, W. D. DOBROWOLSKI3
Far - infrared and magnetic properties of Co doped PbTe (ZCo = 4×1019 at./cm3) single crystal are investigated in a broad range of temperature and magnetic fields. Far – infrared reflection spectra were analyzed using a fitting procedure based on the modified plasmon – ionised impurity – phonon interaction model. Together with the strong coupling we obtained three local modes of Co at about 125, 190 and 275 cm–1, which corresponded to the impurity atoms in different valence states. A magnetic measurement shows that doping PbTe by Co causes appearance of paramagnetic properties.
Semiconductors, Crystal growth, Phonons, Plasmon – phonon interaction.
N. ROMČEVIĆ, J. TRAJIĆ, M. ROMČEVIĆ, D. STOJANOVIĆ, T. A. KUZNETSOVA, D. R. KHOKHLOV, W. D. DOBROWOLSKI, Optical and magnetic properties of PbTe(Co), Optoelectronics and Advanced Materials - Rapid Communications, 4, 4, April 2010, pp.470-475 (2010).
Submitted at: Feb. 4, 2010
Accepted at: April 11, 2010
Optoelectronics and Advanced Materials - Rapid Communications
(2025): Impact Factor = 0.5 - Journal Citation Reports (Clarivate Analytics, 2026)
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