Structural changes ofB2O3through the liquid-glass transition range: A Raman-scattering study

1992 ◽  
Vol 45 (22) ◽  
pp. 12797-12805 ◽  
Author(s):  
A. K. Hassan ◽  
L. M. Torell ◽  
L. Börjesson ◽  
H. Doweidar
Keyword(s):  
Glass Transition ◽  
Raman Scattering ◽  
Liquid Glass ◽  
Structural Changes ◽  
Transition Range ◽  
Glass Transition Range ◽  
Scattering Study

Low-frequency Raman-scattering study of the liquid-glass transition in aqueous lithium chloride solutions

1991 ◽  
Vol 44 (10) ◽  
pp. 6665-6676 ◽  
Author(s):  
N. J. Tao ◽  
G. Li ◽  
X. Chen ◽  
W. M. Du ◽  
H. Z. Cummins
Keyword(s):  
Glass Transition ◽  
Raman Scattering ◽  
Lithium Chloride ◽  
Liquid Glass ◽  
Low Frequency ◽  
Chloride Solutions ◽  
Scattering Study

Slow Dynamics Due to the Metal-Nonmetal Transition in Liquids

2003 ◽  
Vol 217 (7) ◽  
pp. 803-816 ◽  
Author(s):  
Makoto Yao ◽  
Hirotaka Kohno ◽  
Hiroaki Kajikawa
Keyword(s):  
Relaxation Time ◽  
Glass Transition ◽  
Liquid Glass ◽  
Sound Attenuation ◽  
Slow Dynamics ◽  
Anomalous Increase ◽  
Relaxation Strength ◽  
Transition Range ◽  
Liquid Dynamics ◽  
Nonmetal Transition

AbstractIt is well known that the liquid dynamics slows down on approaching the liquid-gas critical point or the liquid-glass transition. Recently we have found by the sound attenuation measurements that the metal-nonmetal (M-NM) transition also induces slow dynamics. In the M-NM transition range of expanded liquid Hg, we have observed anomalous increase in the sound attenuation due to the structural relaxation process. Assuming a simple Debye-type relaxation, we have estimated that the relaxation time should be of the order of nanoseconds and revealed that the relaxation strength has a broad maximum in the M-NM transition range. Moreover, two types of anomalies have been observed also in the semiconductor-metal (S-M) transition range of liquid Te-Se mixtures. We present the recent experimental results of the sound attenuation measurements and discuss briefly the mechanisms of the slow dynamics in the metal-nonmetal transition range of liquids.

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