Search Results - (Author, Cooperation:S. Kafanov)

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  1. 1
    O. V. Astafiev ; L. B. Ioffe ; S. Kafanov ; Y. A. Pashkin ; K. Y. Arutyunov ; D. Shahar ; O. Cohen ; J. S. Tsai
    Nature Publishing Group (NPG)
    Published 2012
    Staff View
    Publication Date:
    2012-04-21
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Kafanov, S. G. ; Parshin, A. Ya. ; Todoshchenko, I. A.
    Springer
    Published 2000
    Staff View
    ISSN:
    1090-6509
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract An investigation is made of the absorption spectra of triplet metastable helium molecules in the a 3Σ u + state in liquid 4He and 3He at various pressures and in dense 3He gas. An analysis of the spectrum corresponding to the a 3Σ u + → c 3Σ g + transition confirms the conclusion that there is a microscopic bubble surrounding the molecule in liquid helium. A simple approximation is proposed for the wave function of the valence electron of the molecule and the parameters of the bubble are determined for various experimental conditions. The coefficient of molecular recombination in liquid 3He and 4He was determined experimentally at various pressures and in dense cold 3He gas. The results show good agreement with the theory of mutual recombination limited by molecular diffusion under conditions of strong van der Waals interaction. It is shown that in the condensed phases of helium the polarization of the molecules under the action of the magnetic field does not lead to suppression of their mutual recombination, and this is confirmed experimentally.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1134/1.1334989

    Articles: DFG German National Licenses