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Far‐infrared spectroscopy of Hg 1−x Mn x S alloys
Author(s) -
Popovic Z. V.,
Tomic N.,
Milutinovic A.
Publication year - 1996
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221970206
Subject(s) - phonon , infrared spectroscopy , infrared , plasmon , analytical chemistry (journal) , materials science , spectroscopy , spectral line , far infrared , chemistry , molecular physics , condensed matter physics , optics , physics , optoelectronics , organic chemistry , chromatography , quantum mechanics , astronomy
The far‐infrared reflectivity spectra of Hg 1− x Mn x S ( x = 0.02, 0.05, 0.10, 0.20, 0.25, and 0.33) alloys were measured in the 30 to 500 cm −1 spectral range at different temperatures and analyzed using a numerical fitting procedure based on the plasmon‐phonon interaction model. The three active modes at about 125, 189, and 305 cm −1 are clearly observed. These modes were assigned as twophonon resonant mode, zone center phonon mode, and disorder‐activated mode, respectively. It was shown that phonons in Hg 1− x Mn x S alloys (for Mn concentrations x ≤ 0.33) exhibit one‐mode behavior.