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A study of the interaction between nonspherical molecules and a surface using the thermomagnetic effect in a Knudsen gas

Author

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  • Borman, V.D.
  • Krylov, S.Yu.
  • Nikolayev, B.I.
  • Troyan, V.I.
  • Frolov, B.A.

Abstract

The paper deals with the use of thermomagnetic effect in a Knudsen gas (i.e., the effect of the magnetic field on the heat flow between two surfaces) in studying nonspherical scattering of polyatomic molecules from a solid surface. The dependence of the effect on the field orientation has been experimentally investigated for the first time. As a result, it has become possible to establish the ranks of the tensors that determine the dependence of the scattering probability on the orientation of the angular momentum of a molecule. A new approach for constructing a theory of the effect has been proposed. This approach takes account of the arbitrary law of spherically symmetric scattering and examines the case of appreciable values of the nonsphericity parameters. From a comparison between the theoretical and experimental dependences of the heat flow on the field magnitude and orientation the expressions for the probability of inelastic nonspherical scattering of N2 and CO molecules by gold and platinum surfaces have been obtained.

Suggested Citation

  • Borman, V.D. & Krylov, S.Yu. & Nikolayev, B.I. & Troyan, V.I. & Frolov, B.A., 1983. "A study of the interaction between nonspherical molecules and a surface using the thermomagnetic effect in a Knudsen gas," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 117(2), pages 531-560.
    • Handle: RePEc:eee:phsmap:v:117:y:1983:i:2:p:531-560
    DOI: 10.1016/0378-4371(83)90130-9
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    Cited by:

    1. Mason, E.A. & Mazur, E., 1985. "Theory of field effects on transport properties of polyatomic gases in the transition regime," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 130(3), pages 437-464.
    2. van der Tol, J.J.G.M. & Hermans, L.J.F. & Krylov, S.Yu. & Beenakker, J.J.M., 1985. "Molecular Angular momentum polarization produced in a Knudsen flow," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 131(3), pages 545-569.
    3. Horne, R. & Hermans, L.J.F., 1988. "Field induced cross effect between heat and momentum transport in a Knudsen gas," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 148(1), pages 74-87.
    4. Horne, R. & Hermans, L.J.F. & Krylov, S.Yu. & Kuščer, I., 1988. "Orientational dependence of magnetic field effects in a molecular Knudsen gas," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 151(2), pages 341-348.

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