Infrared Reflection Spectra of Pb1–xSn x Se (x = 0.2, 0.34) Topological Insulator Films on a ZnTe/GaAs Substrate and the Vibrational Modes of Multilayer Structures

2018 ◽  
Vol 52 (1) ◽  
pp. 34-40 ◽  
Author(s):  
N. N. Novikova ◽  
V. A. Yakovlev ◽  
I. V. Kucherenko ◽  
V. S. Vinogradov ◽  
Yu. A. Aleschenko ◽  
...  
Keyword(s):  
Topological Insulator ◽  
Gaas Substrate ◽  
Multilayer Structures ◽  
Reflection Spectra ◽  
Vibrational Modes ◽  
Infrared Reflection

scholarly journals Infrared reflection spectra of the films of topological insulator Pb1-xSnxSe on the substrates ZnTe/GaAs

2016 ◽  
Vol 132 ◽  
pp. 03059
Author(s):  
N.N. Novikova ◽  
V.A. Yakovlev ◽  
I.V. Kucherenko ◽  
G. Karczewski ◽  
S. Chusnutdinow
Keyword(s):  
Topological Insulator ◽  
Reflection Spectra ◽  
Infrared Reflection

scholarly journals Resonance Raman Scattering in TlGaSe2 Crystals

2017 ◽  
Vol 2017 ◽  
pp. 1-5
Author(s):  
N. N. Syrbu ◽  
A. V. Tiron ◽  
V. V. Zalamai ◽  
N. P. Bejan
Keyword(s):  
Raman Scattering ◽  
Resonance Raman ◽  
Luminescence Spectra ◽  
Reflection Spectra ◽  
Vibrational Modes ◽  
Optical Phonons ◽  
Resonance Raman Scattering ◽  
Infrared Reflection ◽  
Resonance Raman Spectra ◽  
Brillouin Zone Center

The resonance Raman scattering for geometries Y(YX)Z and Y(ZX)Z at temperature 10 K and infrared reflection spectra in E∥a and E∥b polarizations at 300 K were investigated. The number of Aa (Ba) and Au (Bu) symmetry vibrational modes observed experimentally and calculated theoretically agree better in this case than when TlGa2Se4 crystals belong to D2h symmetry group. The emission of resonance Raman scattering and excitonic levels luminescence spectra overlap. The lines in resonance Raman spectra were identified as a combination of optical phonons in Brillouin zone center.

scholarly journals Schwingungsspektrum des hexagonalen Lanthanäthylsulfats La (C2H5SO4)3 · 9 H2O

1965 ◽  
Vol 20 (2) ◽  
pp. 289-296 ◽  
Author(s):  
H. P. Geserich ◽  
K. H. Hellwege ◽  
G. Schaack
Keyword(s):  
Raman Spectra ◽  
Reflection Spectra ◽  
Vibrational Modes ◽  
Rare Earth Ion ◽  
X Ray ◽  
Infrared Reflection ◽  
Symmetry Species ◽  
Crystalline Water ◽  
Ray Methods ◽  
Polarized Radiation

Infrared reflection spectra and RAMAN-spectra of single crystals of La (C2H5SO4) 3 · 9 H2O have been studied between 400 cm-1 and 4000 cm-1 at 90°K and at 300°K, using polarized radiation. Frequencies and symmetry species of the active vibrational modes ( k =0) have been determined.The observed transitions are assigned to internal and external vibrations of the water of crystallization and to internal vibrations of the ethylsulfate ion. The orientation of the water dipoles surrounding the rare earth ion, which cannot be determined by X-ray methods, is derived from the RAMAN-spectra of the crystalline water.

Isotopic disorder effect in the infrared reflection spectra of 6Lix7Li1−xY F4 single crystals

2007 ◽  
Vol 142 (5) ◽  
pp. 256-260
Author(s):  
E.A. Vinogradov ◽  
V.A. Yakovlev ◽  
N.N. Novikova ◽  
M.N. Popova ◽  
S.K. Saikin ◽  
...  
Keyword(s):  
Single Crystals ◽  
Reflection Spectra ◽  
Infrared Reflection ◽  
Disorder Effect

Characterization of solid inorganic and coordination compounds by their near infrared reflection spectra

1966 ◽  
Vol 19 (10) ◽  
pp. 1785 ◽  
Author(s):  
AF Reid
Keyword(s):  
Coordination Compounds ◽  
Near Infrared ◽  
Organometallic Compounds ◽  
Reflection Spectra ◽  
Convenient Means ◽  
Infrared Reflection ◽  
Number Of Classes

The near infrared combination spectra of a number of classes of solid inorganic and coordination compounds have been recorded and assigned. The spectra are shown to be typical of particular ligands regardless of the compounds in which they are contained, and to serve as an experimentally convenient means of characterization of solid coordination or organometallic compounds.

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