Low-temperature Raman studies of sulfur-rich TlIn(S1-xSex)2 single crystals

被引：4

作者：

Gomonnai, Oleksandr O. ^{[1
,2
]}

Ludemann, Michael ^{[3
]}

Gomonnai, Alexander, V ^{[1
,4
]}

Roman, Ivan Yu ^{[4
]}

Slivka, Alexander G. ^{[1
]}

Zahn, Dietrich R. T. ^{[3
]}

机构：

[1] Uzhgorod Natl Univ, 46 Pidhirna Str, UA-88000 Uzhgorod, Ukraine

[2] Vlokh Inst Phys Opt, 23 Dragomanov Str, UA-79005 Lvov, Ukraine

[3] Tech Univ Chemnitz, Semicond Phys, D-09107 Chemnitz, Germany

[4] Ukr Nat Acad Sci, Inst Electron Phys, 21 Univ Str, UA-88017 Uzhgorod, Ukraine

来源：

VIBRATIONAL SPECTROSCOPY | 2018年 / 97卷

关键词：

Raman scattering; Layered crystals; Crystal disorder; OPTICAL PHONONS; COMPOSITIONAL DEPENDENCE; DIELECTRIC-PROPERTIES; HYDROSTATIC-PRESSURE; PHASE-TRANSITIONS; MODE FREQUENCIES; TLINS2; TLGASE2; SPECTRA; SCATTERING;

D O I：

10.1016/j.vibspec.2018.05.007

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Raman spectra of TlIn(S1-xSex)(2) (0 <= x <= 0.25) single crystals in the frequency range 16-400 cm(-1) were studied at T = 30 K in the Z(XX+XY)Z configuration. The experimental Raman spectra of TlIn(S1-xSex)(2) single crystals were analyzed by multi-peak simulation by Lorentzian contours, enabling the peak frequencies, halfwidths and intensities to be determined. Their compositional dependences were studied. Compositional behaviour of Raman features revealed in the spectral regions 40-85 cm(-1) and 190-220 cm(-1) is discussed in view of different number of isovalent S and Se atoms in structural groups corresponding to the general formula of In4S10-ySey.

引用

页码：114 / 118

页数：5

共 32 条

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