Raman and infrared characterization of gadolinium-doped manganese sulfide

被引：9

作者：

Gerasimova, Y. V. ^{[1
,2
]}

Oreshonkov, A. S. ^{[1
,3
]}

Romanova, O. B. ^{[4
]}

Ivanenko, A. A. ^{[1
]}

Krylov, A. S. ^{[1
]}

机构：

[1] Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Lab Mol Spect, Krasnoyarsk, Russia

[2] Siberian Fed Univ, Dept Expt Phys & Innovat Technol, Krasnoyarsk, Russia

[3] Siberian Fed Univ, Dept Photon & Laser Technol, Krasnoyarsk, Russia

[4] Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Lab Resonance Properties Magnet Ordered Media, Krasnoyarsk, Russia

来源：

SPECTROSCOPY LETTERS | 2017年 / 50卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

Infrared; lattice dynamics; manganese sulfide; Raman; INDUCED PHASE-TRANSITIONS; SPECTROSCOPIC PROPERTIES; MODULATED STRUCTURE; PHOSPHORS; CRYSTAL; SCATTERING; RB2KINF6; PHONONS; SPECTRA;

D O I：

10.1080/00387010.2017.1287092

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Gadolinium manganese sulfide solid solutions are investigated by infrared and Raman spectroscopy. Longitudinal optical-transverse optical splitting of the manganese-sulfur bond vibration is observed in the vibrational spectra. The Raman spectra contain modes that are prohibited in the crystal structure of the alpha phase of manganese sulfide, which are associated with activation of the phonons from both the Brillouin zone center and its X and L points. The concentration dependence of transverse optical and longitudinal optical modes' frequencies is calculated within the frame of the modified random-element-isodisplacement model, being in good agreement with the experimental results. Both theory and experiment show that the solid solution under study exhibits a "one-mode" behavior.

引用

页码：55 / 58

页数：4

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