Experimental Measurement of Carbon Dioxide Polarizability in the Solid State

Experimental Measurement of Carbon Dioxide Polarizability in the Solid State

We have experimentally determined the polarizability of CO 2 using the Lorentz–Lorenz equation by simultaneously measuring the density and the refractive index. The CO 2 conditions were solid phase, 10 - 7 mbar pressure, and temperature range 10–86 K. The polarizability value compares well with prev...

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Veröffentlicht in:Journal of low temperature physics 2015-10, Vol.181 (1-2), p.1-9
Hauptverfasser: Domingo, M., Luna, R., Satorre, M. A., Santonja, C., Millán, C.
Format: Artikel
Sprache:eng
Schlagworte:
Carbon dioxide
Characterization and Evaluation of Materials
Condensed Matter Physics
Constants
Crystal structure
Density
Low temperature physics
Magnetic Materials
Magnetism
Mathematical analysis
Physics
Physics and Astronomy
Simulation
Solid phases
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Zusammenfassung:We have experimentally determined the polarizability of CO 2 using the Lorentz–Lorenz equation by simultaneously measuring the density and the refractive index. The CO 2 conditions were solid phase, 10 - 7 mbar pressure, and temperature range 10–86 K. The polarizability value compares well with previous gas-phase experimental results and the results from simulations, and does not depend on the temperature of CO 2 ice formation. This value is constant in the temperature range studied, despite a structural change from amorphous to crystalline.
ISSN:0022-2291
1573-7357
DOI:10.1007/s10909-015-1326-6