RESONANT PROPERTIES OF INELASTIC LIGHT SCATTERING IN Bi2Sr2CaCu2O8-x SUPERCONDUCTING SINGLE CRYSTALS

1992 ◽  
Vol 06 (18) ◽  
pp. 1137-1143 ◽  
Author(s):  
O. V. MISOCHKO ◽  
A. KH. ARSLANBEKOV
Keyword(s):  
Light Scattering ◽  
Raman Scattering ◽  
Single Crystals ◽  
Inelastic Light Scattering ◽  
Similar Character ◽  
Electronic Scattering

The resonant properties of Raman scattering in Bi 2 Sr 2 CaCu 2 O 8-x single crystals for four diagonal phonons and electronic scattering as well have been investigated for different polarizations. The resonance profiles for the phonons were of similar character, but the resonant profiles of the two components of electronic scattering, by contrast, were different.

Composition Dependent Resonant Raman Scattering in Al0.33Ga0.67As/InxGa1-xAs1-yNy Multiquantum Wells

2006 ◽  
Vol 518 ◽  
pp. 17-22 ◽  
Author(s):  
S. Lazić ◽  
J.M. Calleja ◽  
R. Hey ◽  
K. Ploog
Keyword(s):  
Light Scattering ◽  
Molecular Beam Epitaxy ◽  
Quantum Well ◽  
Raman Scattering ◽  
Molecular Beam ◽  
Vibration Modes ◽  
Inelastic Light Scattering ◽  
Resonance Energies ◽  
Resonant Raman ◽  
Resonant Raman Scattering

InxGa1-xAs1-yNy/Al0.33Ga0.67As multiquantum wells grown by plasma-assisted molecular beam epitaxy are studied by resonant inelastic light scattering. Sharp vibration modes have been observed at 323, 402, 454 and 501 cm-1. Their intensities resonate at the barrier bandgap reduced by the presence of N. Their resonance energies reveal the influence of the N concentration on the barrier gap at the multiquantum well interfaces. These peaks are interpreted in terms of local vibrations involving the pairing of N atoms, which seems to occur mostly at the quantum well interfaces due to preferential bonding of N to Al.

Anisotropy of Optical and Electron Transport Properties of Atomic Ordering in CdGeAs2

1999 ◽  
Vol 607 ◽  
Author(s):  
B. H. Bairamov ◽  
N. Fernelius ◽  
G. Irmer ◽  
J. Monecke ◽  
I. K. Polushina ◽  
...  
Keyword(s):  
Light Scattering ◽  
Single Crystals ◽  
Wide Band ◽  
Optical Quality ◽  
Surface Barrier ◽  
Optical Phonons ◽  
High Optical Quality ◽  
Inelastic Light Scattering ◽  
Linearly Polarized ◽  
Electron Transport Properties

AbstractInelastic light scattering by optical phonons and the temperature dependent electrical conductivity, Hall constant and photosensitivity were studied in oriented CdGeAs2 crystals grown by ultra-low gradient freeze technique from near-stoichiometric melts. Observation of the clear polarization dependence of the inelastic light scattering spectra by optical phonons combined with the absence of any dependence of the intensity and frequency shift of the observed lines with mapping measurements in 300 μm steps indicated the high optical quality and homogeneity of these single crystals. It is shown that surface-barrier structures using these single crystals may be used as wide-band detectors for natural light, as well as selective photoanalyzers for linearly polarized radiation.

scholarly journals Study of the superconducting gap inRNi2B2C(R=Y,Lu)single crystals by inelastic light scattering

2000 ◽  
Vol 62 (2) ◽  
pp. 1291-1295 ◽  
Author(s):  
In-Sang Yang ◽  
M. V. Klein ◽  
S. L. Cooper ◽  
P. C. Canfield ◽  
B. K. Cho ◽  
...  
Keyword(s):  
Light Scattering ◽  
Single Crystals ◽  
Superconducting Gap ◽  
Inelastic Light Scattering

Microprobe Analysis of Nanophase Metal-Oxides using Inelastic Light Scattering

1990 ◽  
Vol 206 ◽  
Author(s):  
J. C. Parker ◽  
R. W. Siegel
Keyword(s):  
Light Scattering ◽  
Thermogravimetric Analysis ◽  
Raman Scattering ◽  
Metal Oxides ◽  
Microprobe Analysis ◽  
Spatial Variations ◽  
Oxygen Stoichiometry ◽  
Inelastic Light Scattering ◽  
Raman Microprobe ◽  
Phase Calibration

ABSTRACTNanophase TiO2 and ZnO were investigated with a Raman microprobe in order to determine the spatial variations in material composition, oxygen stoichiometry, and phase. Calibration of the oxygen stoichiometry of nanophase TiO2 was determined through a combination of Raman scattering and thermogravimetric analysis.

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