Anomalous temperature-dependent Raman scattering in lithium hydrazinium sulfate

1991 ◽  
Vol 69 (11) ◽  
pp. 1695-1698
Author(s):  
Roger Frech ◽  
Scott H. Brown
Keyword(s):  
Raman Scattering ◽  
Proton Conductor ◽  
Anomalous Behavior ◽  
Temperature Dependent ◽  
Band Center ◽  
Normal Behavior ◽  
Key Words Lithium ◽  
Scattering Study ◽  
Polarized Raman ◽  
Increasing Temperature

Results of a polarized Raman scattering study of single crystal lithium hydrazinium sulfate, LiN2H5SO4, over a temperature interval from 11 to 300 K are discussed. Unusual temperature dependence of the band center scattering intensity is observed in a few intramolecular hydrazinium modes, intramolecular sulfate ion modes, and lattice modes. The intensity of these modes increases with increasing temperature from 11 K to about 175 K, then abruptly decreases over a small interval between 175 and 200 K. Above 200 K the band center intensity then exhibits normal behavior, slowly decreasing with increasing temperature. Possible explanations for this anomalous behavior are discussed. Key words: lithium hydrazinium sulfate, proton conductor, Raman spectroscopy.

Temperature-dependent Raman scattering study of tin modified PbZrO3 and PbHfO3 single crystals

2015 ◽  
Vol 644 ◽  
pp. 854-861 ◽  
Author(s):  
I. Jankowska-Sumara ◽  
M. Ptak ◽  
M. Mączka ◽  
A. Majchrowski ◽  
T.H. Kim ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Single Crystals ◽  
Temperature Dependent ◽  
Scattering Study

Temperature-dependent Raman scattering study of multiferroic MnWO4

2009 ◽  
Vol 41 (9) ◽  
pp. 1005-1010 ◽  
Author(s):  
Luc Huy Hoang ◽  
Nguyen T. M. Hien ◽  
W. S. Choi ◽  
Y. S. Lee ◽  
K. Taniguchi ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Temperature Dependent ◽  
Scattering Study

A Polarized raman scattering study on deuterated tetramethylammonium chlorozincate

1996 ◽  
Vol 185 (1) ◽  
pp. 245-248
Author(s):  
J. Henocque ◽  
Y. Guinet ◽  
A. Hedoux
Keyword(s):  
Raman Scattering ◽  
Scattering Study ◽  
Polarized Raman

Polarized Raman Scattering Study of ZnGeP2 Single Crystals

1997 ◽  
Vol 484 ◽  
Author(s):  
Spirit Tlali ◽  
Howard E. Jackson ◽  
M. C. Ohmer ◽  
P. G. Schunemann ◽  
T. M. Pollak
Keyword(s):  
Raman Scattering ◽  
Single Crystals ◽  
Raman Spectra ◽  
Low Temperatures ◽  
High Quality ◽  
Crystal Orientations ◽  
Gradient Technique ◽  
Theoretical Predictions ◽  
Scattering Study ◽  
Polarized Raman

AbstractRaman scattering experiments on high quality ZnGeP2 single crystals grown by the seeded horizontal dynamic gradient technique have been carried out. Polarized Raman spectra were obtained in the backscattering geometry at both room and low temperatures for several crystal orientations and compared with group theoretical predictions. Raman spectra from as-grown and annealed samples display distinctive differences which were explored by utilizing two different excitation wavelengths: 514.3 nm and 632.8 nm; the observed differences are attributed to a surface interdiffuasion effect.

Temperature-dependent Raman scattering study of K2MoO4

2012 ◽  
Vol 58 ◽  
pp. 87-94 ◽  
Author(s):  
G.D. Saraiva ◽  
W. Paraguassu ◽  
P.T.C. Freire ◽  
M. Maczka ◽  
J. Mendes Filho
Keyword(s):  
Raman Scattering ◽  
Temperature Dependent ◽  
Scattering Study

Polarized Raman scattering study of blue bronze Tl0.3MoO3

2010 ◽  
Vol 405 (17) ◽  
pp. 3782-3786 ◽  
Author(s):  
Di Yin ◽  
Qingming Zhang ◽  
Jonathon Oiler ◽  
Changzhen Li ◽  
Rui Xiong ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Scattering Study ◽  
Polarized Raman ◽  
Blue Bronze
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