Skip to main content
Log in

3He-4He mixtures in aerogel

  • Invited Talks
  • Published:
Journal of Low Temperature Physics Aims and scope Submit manuscript

Abstract

Superfluid density and heat capacity experiments on3He-4He mixtures in 98% porous aerogel show that in this system the coexistence boundary is detached from the superfluid transition line. The tricritical point is removed, and there is a superfluid phase on the3He rich side of the phase diagram. The presence of heat capacity peaks along the transition line down to a4He concentration of only 8% indicates the 3-dimensional nature of this transition.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. M. H. W. Chan, K. J. Blum, S. Q. Murphy, G. K. S. Wong and J. D. Reppy,Phys. Rev. Lett. 61, 1950 (1988).

    Google Scholar 

  2. G. K. S. Wong, P. A. Crowell, H. A. Cho and J. D. Reppy,Phys. Rev. Lett. 65, 2410 (1990). Ibid,Phys. Rev. B, to be published.

    Google Scholar 

  3. N. Mulders, R. Mehrotra, L. S. Goldner and G. Ahlers, Phys.Rev. Lett. 67, 695 (1991); M. Larson, N. Mulders and G. Ahelers,Phys. Rev. Letts. 68, 3896 (1992).

    Google Scholar 

  4. A. P. Y. Wong and M. H. W. Chan,Phys. Rev. Lett. 65, 2567 (1990).

    Google Scholar 

  5. A. P. Y. Wong, S. B. Kim, W. I. Goldburg and M. H. W. Chan,Phys. Rev. Lett. 70, 954 (1993).

    Google Scholar 

  6. J. Fricke, ed.,Aeogels: Proceedings of the First Int. Symp. (Springer-Verlag, Berlin, 1986).

    Google Scholar 

  7. Aerogel with an open volume fraction of higher than 0.95 have been made by L. W. Hrubesh and collaborators with a two step gelation process: T. M. Tillotson, L. W. Hrubesh and I. M. Thomas,Mat. Res. Soc. Proc. 121, 685 (1988).T.M. Tillotson and L.W. Hrubesh inAerogels, edited by J. Fricke, North-Holland 1992.

    Google Scholar 

  8. R. Vacher, T. Woignier, J. Pelons and E. Courtens,Phys. Rev. B37, 6500 (188); D. W.Schaefer and K. D. Keefer,Phys. Rev. Lett. 56, 2199 (1987).

    Google Scholar 

  9. A. B. Weinrib and B. I. Halperin,Phys. Rev. B27, 413 91983); O. Narayan and D. S. Fisher,Phys. Rev. B42, 7869 (1990).

  10. S. B. Kim, J. Ma and M. H. W. Chan,Phys. Rev. Lett. 71, 2268 (1993).

    Google Scholar 

  11. D.M. Lee, H.A. Fairbank and E.J. Walker,Phys. Rev. 121, 1258 (1961); C. Boghosian, H. Meyer and J. E. Rives,Phys. Rev. 146, 110 (1966).

    Google Scholar 

  12. P. Sullivan and G. Seidel,Phys. Rev. B 20, 997 (1979).

    Google Scholar 

  13. T. Alvesalo, P. Berglund, S. Islander, G.R. Picket and W. Zimmerman, Jr,Phys. Rev. Lett. 22, 1281 (1969);Phys. Rev. A4, 2354 (1971).

    Google Scholar 

  14. R.de Bruyn Ouboter, K.W. Taconis, C. Le Pair and J.J.M. Beenakker,Physica 26, 853 (1960).

    Google Scholar 

  15. M. Blume, V.J. Emery and R.B. Griffiths,Phys. Rev. A4, 1071 (1971)

    Google Scholar 

  16. A. Maritan, M. Cieplak, M. Swift, F. Toigo and J.R. Banavar,Phys. Rev. Lett. 69, 221 (1992).

    Google Scholar 

  17. A. Falicov and A.N. Berker,Phys. Rev. Lett. 74, 426 (1995).

    Google Scholar 

  18. P.A. Crowell, J.D. Reppy, S. Mukherjee, J. Ma, M.H.W. Chan and D.W. Schaefer,Phys. Rev B51, 12721 (1995).

    Google Scholar 

  19. L. Pricaupenko and J. Treiner,Phys. Rev. Lett. 74, 430 (1995).

    Google Scholar 

  20. M. Boninsegni and D.M. Ceperley,Phys. Rev. Lett. 74, 2288 (1995).

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Additional information

This work is supported by NSF under grants DMR-9008461 and DMR-9311918.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Mulders, N., Ma, J., Kim, S.B. et al. 3He-4He mixtures in aerogel. J Low Temp Phys 101, 95–105 (1995). https://doi.org/10.1007/BF00754565

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00754565

Keywords

Navigation