The influence of nuclear spins on the transport properties of molecular gases and application to HD

J.A.R. Coope, B.C. Sanctuary and J.J.M. Beenakker

Physica A: Statistical Mechanics and its Applications, 1975, vol. 79, issue 2, 129-170

Abstract: Coupling between the angular momentum J and the nuclear spins of a molecule modifies those contributions to the transport properties of a molecular gas which arise from the macroscopic orientational polarization. This (low pressure) effect is studied in detailfor molecular HD at low temperature (J = 1 states). Because the rotational quantum numbers are low (J = 1), a quantum treatment is essential and moreover be classical motion of J differs significantly from simple precession: the “nutation” of J being also important. This nutation gives rise to significant phase randomization of the angular-momentum polarizations at zero field, and to a field effect on the axial polarizations which are in addition to the usual field effects on nonaxial polarizations.

Date: 1975
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:79:y:1975:i:2:p:129-170

DOI: 10.1016/0378-4371(75)90150-8

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