Vibrational spectroscopy of indium-doped Pb0.9Mn0.1Te alloyстатья
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Дата последнего поиска статьи во внешних источниках: 9 ноября 2013 г.
Аннотация:Raman scattering and far-infrared reflection spectra of 0.5 at.% In doped Pb0.9Mn0.1Te single crystal at temperatures between 10 and 300 K are presented. The infrared spectra have been fitted using a modified plasmon-phonon interaction model with an additional oscillator (at about 122 cm(-1)) representing a local In-impurity mode. Phonons in this mixed crystal exhibit intermediate mode behavior. The plasma frequency decreases on cooling from 300 to 25 K and increases sharply between 20 and 10 K. The results of galvanomagnetic measurements are also presented.