scholarly journals Pressure-induced emergence of unusually high-frequency transverse excitations in a liquid alkali metal: Evidence of two types of collective excitations contributing to the transverse dynamics at high pressures

2015 ◽  
Vol 143 (10) ◽  
pp. 104502 ◽  
Author(s):  
Taras Bryk ◽  
G. Ruocco ◽  
T. Scopigno ◽  
Ari P. Seitsonen
Keyword(s):  
Alkali Metal ◽  
High Frequency ◽  
High Pressures ◽  
Collective Excitations ◽  
Liquid Alkali Metal

scholarly journals Near Infrared Absorption of Ethylene between 8200 cm-1 and 9500 cm-1 to High Pressures and Temperatures

1976 ◽  
Vol 31 (12) ◽  
pp. 1690-1695 ◽  
Author(s):  
F. W. Nees ◽  
M. Buback
Keyword(s):  
Infrared Absorption ◽  
High Frequency ◽  
Near Infrared ◽  
High Pressures ◽  
High Temperature Phase ◽  
Temperature Phase ◽  
Experimental Conditions ◽  
High Pressure High Temperature ◽  
Wide Range ◽  
Integrated Intensity

AbstractThe near infrared absorption of pure ethylene in the region of the second overtone of the C-H stretching fundamentals (8200 cm-1 to 9500 cm-1) was measured at supercritical temperatures (Tc = 9.5 °C) between 22 °C and 200 °C from 0.7 bar to 3000 bar. The density and temperature dependence of bandshape, maximum frequency and absorption intensity are reported and discussed. The bands observed within a wide range of experimental conditions are assigned to combination and overtone modes. The molar integrated intensity B̅λ determined between the wavelength of maximum absorption and the high frequency absorption boundary was observed to be independent of pressure and temperature. This enables spectroscopic concentration determinations on ethylene in high pressure - high temperature phase equilibria and reactions.

Structural properties of liquid alkali-metal–lead alloys: NaPb, KPb, RbPb, and CsPb

1989 ◽  
Vol 40 (9) ◽  
pp. 6018-6029 ◽  
Author(s):  
H. T. J. Reijers ◽  
M.-L. Saboungi ◽  
D. L. Price ◽  
J. W. Richardson ◽  
K. J. Volin ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Structural Properties ◽  
Liquid Alkali Metal ◽  
Lead Alloys

scholarly journals Thermotransport studies in liquid alkali metal alloys

1974 ◽  
Vol 22 (2) ◽  
pp. 185-189 ◽  
Author(s):  
S.P Murarka ◽  
T.Y Kim ◽  
M.Y Hsieh ◽  
R.A Swalin
Keyword(s):  
Alkali Metal ◽  
Metal Alloys ◽  
Liquid Alkali Metal
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