Temperature dependence of the low frequency Raman scattering spectra in tetramethylammonium tetrachlorozincate

1983 ◽  
Vol 14 (2) ◽  
pp. 93-95 ◽  
Author(s):  
J. Henocque ◽  
J. L. Sauvajol ◽  
J. Lefebvre ◽  
G. Marion
Keyword(s):  
Raman Scattering ◽  
Temperature Dependence ◽  
Low Frequency ◽  
Scattering Spectra ◽  
Raman Scattering Spectra

Experimental Study of the Liquid-Glass Transition in an Inorganic Polymer Li0.5Na0.5PO3

1995 ◽  
Vol 407 ◽  
Author(s):  
B. Rufflé ◽  
S. Beaufils ◽  
Y. Délugeard ◽  
G. Coddens ◽  
J. Etrillard ◽  
...  
Keyword(s):  
Experimental Study ◽  
Glass Transition ◽  
Raman Scattering ◽  
Viscous Flow ◽  
Liquid Glass ◽  
Low Frequency ◽  
Glass Forming ◽  
Scattering Spectra ◽  
Temperature Ranges ◽  
Raman Scattering Spectra

ABSTRACTNew experimental results obtained with various techniques on a less-studied glass-forming system are presented. At low frequency, a secondary βslow-process, decoupled from the viscous flow, is observed by 3 1P NMR. Raman scattering spectra and coherent neutron scattering spectra has been obtained in wide frequency and temperature ranges showing the same qualitative features for the Boson peak while the quasielastic contribution seems to differ markedly.

Temperature dependence of the Raman scattering spectra in monoclinic RbD2PO4 crystals

1994 ◽  
Vol 144 (1) ◽  
pp. K17-K22 ◽  
Author(s):  
Ya. I. Shchur ◽  
V. I. Dzhala ◽  
O. G. Vlokh ◽  
I. M. Klymiv
Keyword(s):  
Raman Scattering ◽  
Temperature Dependence ◽  
Scattering Spectra ◽  
Raman Scattering Spectra

STRUCTURE AND TRANSPORT PROPERTIES OF Pr1-xSr1+xCoO4

2008 ◽  
Vol 22 (32) ◽  
pp. 3195-3205 ◽  
Author(s):  
M. LI ◽  
S. L. HUANG ◽  
Z. M. LV ◽  
J. L. ZHANG ◽  
H. Y. WU ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Low Frequency ◽  
X Ray Diffraction ◽  
Phonon Interaction ◽  
Band Shift ◽  
X Ray ◽  
Electron Phonon Interaction ◽  
Scattering Spectra ◽  
Raman Scattering Spectra ◽  
Dramatic Variation

Powder X-ray diffraction, Raman scattering and infrared spectra at different doping (x = 0 ~ 0.5) on polycrystalline Pr 1-x Sr 1+x CoO 4 were performed. With increasing x, the shift of Raman scattering spectra is due to the enhancement of electron–phonon interaction along the c-axis. The contrary variation of infrared in wavenumber comes from the weakening electron–phonon interactions in the ab plane. There is a dramatic variation in resistivity as x increases, which is also caused by increasing carrier concentration and is related to the band shift. For Pr 1-x Sr 1+x CoO 4, both A1g bands shift to low frequency and reach a minimum when x = 0.3 and the resistivity of Pr 0.7 Sr 1.3 CoO 4 is the smallest at room temperature.

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