Far-infrared reflection spectra of HgSe |
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Authors: | A Manabe A Mitsuishi |
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Institution: | Department of Applied Physics, Osaka University, Suita, Osaka, Japan |
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Abstract: | Reflectivity of HgSe (N = 2.0 × 1018-4.2 × 1017 cm-3) was measured in the spectral region from 2–100 μm at temperatures between 95 and 300 K. The frequency of the transverse optical phonon ωt = 132 ± 2 cm-1 was determined from Kramers-Kronig analysis. The ω+ mode of the plasmon-LO phonon coupled modes is shown to depend anomalously on temperature. Two extra bands of unknown origin were also observed at about 110 and 120 cm-1. |
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