Plasmon-phonon interaction in Hg1-xMnxSe alloys

被引：3
|
作者：
Romcevic, N. [1 ]
Romcevic, M. [1 ]
Milutinovic, A. [1 ]
Kostic, S. [1 ]
机构：
[1] Inst Phys, Belgrade 11080, Serbia
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 478卷 / 1-2期
基金：
芬兰科学院;
关键词：
Semiconductors; Infrared spectroscopy; Optical properties; Light absorption and reflection; FAR-INFRARED-SPECTRA; HGTE;
D O I：
10.1016/j.jallcom.2008.11.145
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Far-infrared reflection and Raman spectra of Hg1-xMnxSe (x <= 0.3) alloys were measured at room temperature. The analysis of the Raman spectra was made by deconvolution technique. The analysis of the far-infrared spectra was made by a fitting procedure based on dielectric function which includes spacious distribution of free carrier influence on the plasmon-phonon interaction. In spite of strong plasmon-LO phonon interaction, we found that the long wavelength optical phonon modes of these mixed crystals showed two-mode behaviour. The model of phonon behaviour was developed, and we obtain very good agreement with experimental results. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：41 / 44
页数：4
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