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For the first time on the experimental IR reflection spectra R(λ) of α -Ag2Se films with charge carrier concentration
4,0 x 1018 cm-3 at 300 K behind of plasma minimum (1150 cm-1) are detected two further minimums (800 cm-1 and 550cm-1),
stipulated by interaction of plasmon and long-wave optical (LO) phonons. It was founded the peculiarities in the behaviour
of the optical function (ε1; ε2; -Im ε-1) at the interaction of the free charge carrier with the polarizable ions of lattice
oscillations. The frequency of longitudinal and transversal phonons is calculated.
Sh. M. Alekperova,A. A. Aliyev,Kh. D. Jalilova, andG. S. Gadjiyeva
"Plasmon-phonon interaction in α-Ag2Se thin films", Proc. SPIE 6636, 19th International Conference on Photoelectronics and Night Vision Devices, 66360S (2 May 2007); https://doi.org/10.1117/12.742526
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Sh. M. Alekperova, A. A. Aliyev, Kh. D. Jalilova, G. S. Gadjiyeva, "Plasmon-phonon interaction in α-Ag2Se thin films," Proc. SPIE 6636, 19th International Conference on Photoelectronics and Night Vision Devices, 66360S (2 May 2007); https://doi.org/10.1117/12.742526