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Spin dynamics at the dipole unlocking transition in3He-A

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Abstract

The equations decribing the spin dynamics of 3 He-A have been generalised to allow for the effect of susceptibility anisotropy on the Leggett-Takagi damping. Analytical and numerical solutions have been obtained for the configuration where1 is locked parallel to a static magnetic field by boundaries. Our investigations show that the dipole unlocking transition, whered flips from parallel to perpendicular to1, should proceed via a long lived spin precession at a frequency (ωL, ± ωLD), where ωL is the Larmor frequency and ωLD the Larmor frequency at the dipole unlocking field. Progress in searching for this mode experimentally is reported.

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References

  1. R. Haley, A. Armstrong, F. Clancy, A. Manninen, J. Hook and H. Hall, paper at this symposium.

  2. S. Takagi,J. Phys. C: Solid State Phys. 8, 1507 (1975).

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  3. D. Vollhardt and P. Wölfle,The Superfluid Phases of Helium 3, p 394 (Taylor and Francis, London, 1990).

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Authors and Affiliations

  1. Department of Physics and Astronomy, University of Manchester, M13 9PL, Manchester, England

    Henry Hall, John Hook, Richard Haley & Fergus Clancy

Authors
  1. Henry Hall
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  2. John Hook
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  3. Richard Haley
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  4. Fergus Clancy
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Hall, H., Hook, J., Haley, R. et al. Spin dynamics at the dipole unlocking transition in3He-A. J Low Temp Phys 101, 117–122 (1995). https://doi.org/10.1007/BF00754567

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  • DOI: https://doi.org/10.1007/BF00754567

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