Journal of Low Temperature Physics

, Volume 89, Issue 1–2, pp 297–306 | Cite as

Polarization of3He-4He mixtures of high concentration using the Castaing-Nozières effect

  • G. Frossati
  • L. P. Roobol
  • S. C. Steel
  • C. M. C. M. van Woerkens
  • R. Jochemsen
Papers Based On Oral Presentations

Abstract

Strongly polarized liquid mixtures of3He in4He of high concentration have been obtained for the first time, using quick melting of polarized3He solid in a 9 T field, inside a solid4He matrix (a variation of the Castaing-Nozières effect). We measured relaxation times which were as long as 4000 s for a 5.5% mixture at T=350 mK with a polarization enhancement Δ/Δ0≅15 where Δ0 is the equilibrium polarization in an external field of 9.3 T. We discuss an improved cell which will be used for similar experiments in a 15 T field.

Keywords

Relaxation Time Magnetic Material External Field Liquid Mixture Measure Relaxation Time 

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Copyright information

© Plenum Publishing Corporation 1992

Authors and Affiliations

  • G. Frossati
    • 1
  • L. P. Roobol
    • 1
  • S. C. Steel
    • 1
  • C. M. C. M. van Woerkens
    • 1
  • R. Jochemsen
    • 1
  1. 1.Kamerlingh Onnes LaboratoriumRijksuniversiteit LeidenLeidenThe Netherlands

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