Collective vibrational modes, x-ray photoemission spectra, and dielectric susceptibility of Ba2YMO6(M=Nb,Ta)

2013 ◽  
Vol 88 (7) ◽  
Author(s):  
Alo Dutta ◽  
T. P. Sinha ◽  
Santiranjan Shannigrahi
Keyword(s):  
Dielectric Susceptibility ◽  
Vibrational Modes ◽  
X Ray ◽  
Collective Vibrational Modes

Composition and Structure of Spark Eroded Porous Silicon

1992 ◽  
Vol 283 ◽  
Author(s):  
R. E. Hummel ◽  
S.-S. Chang ◽  
M. Ludwig ◽  
A. Morrone
Keyword(s):  
Porous Silicon ◽  
Polycrystalline Silicon ◽  
Amorphous Matrix ◽  
Vibrational Modes ◽  
Photoluminescence Spectra ◽  
X Ray ◽  
Composition And Structure ◽  
Bending Mode ◽  
Spark Erosion ◽  
Silicon Particles

ABSTRACTPorous silicon which has been prepared by a “dry” technique, that is, by spark erosion, yields similar photoluminescence spectra as anodically etched porous silicon which has been prepared in aqueous solutions. Fourier transform infrared spectra reveal that the dominant features in spark eroded silicon are the Si-O-Si stretching mode and the Si-O-Si bending mode. No infrared vibrational modes characteristic for siloxene have been found in spark eroded Si. Results from X-ray and electron diffraction studies suggest that spark eroded Si involves minute polycrystalline silicon particles which are imbedded in an amorphous matrix.

Individual and collective vibrational modes of nanostructures studied by picosecond ultrasonics

Ultrasonics ◽  
2006 ◽  
Vol 44 ◽  
pp. e1289-e1294 ◽  
Author(s):  
T. Bienville ◽  
J.F. Robillard ◽  
L. Belliard ◽  
I. Roch-Jeune ◽  
A. Devos ◽  
...  
Keyword(s):  
Vibrational Modes ◽  
Collective Vibrational Modes ◽  
Picosecond Ultrasonics

Collective vibrational modes in molecular assembly of DNA and its application to biological systems. Low frequency Raman spectroscopy

1985 ◽  
Vol 82 (1) ◽  
pp. 531-535 ◽  
Author(s):  
Hisako Urabe ◽  
Hideyuki Hayashi ◽  
Yasunori Tominaga ◽  
Yoshifumi Nishimura ◽  
Kenji Kubota ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Biological Systems ◽  
Low Frequency ◽  
Molecular Assembly ◽  
Vibrational Modes ◽  
Collective Vibrational Modes
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