Advertisement

Spin Diffusion of Dilute 3He-4He Solutions under Pressure

  • D. K. Cheng
  • P. P. Craig
  • T. A. Kitchens

Abstract

The transport properties of dilute solutions of 3He in 4He provide information about the effective interaction between the 3He quasiparticles. Of the transport properties, the spin diffusion coefficient, which can be measured by NMR spin-echo techniques, is most sensitive to these interactions. Here we report such measurements on 4.97% and 1.15% 3He in 4He for pressures of 0.04, 9.2, and 20 atm at temperatures between 1.5 and 0.072°K. The effective interaction potentials at the three pressures deduced from these data are presented. From these potentials it appears that the temperature of the expected superfluid transition is highest for the lowest pressure and the smaller concentration studied.

Keywords

Spin Diffusion Needle Valve Superfluid Transition Thermal Film Effective Interaction Potential 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    V.J. Emery, Phys. Rev. 161, 194 (1967).ADSCrossRefGoogle Scholar
  2. 2.
    V. Radeka, R.L. Chase, M. Petrinovic, and J.A. Glasel, Rev. Sci. Instr. 41, 1766 (1970).ADSCrossRefGoogle Scholar
  3. 3.
    H.Y. Carr and E.M. Purcell, Phys. Rev. 94, 630 (1954).ADSCrossRefGoogle Scholar
  4. 4.
    H. Hart, Thesis, Univ. of Illinois, 1960.Google Scholar
  5. 5.
    A.C. Anderson, D.O. Edwards, W.R. Roach, R.E. Sarwinski, and J.C. Wheatley, Phys. Rev. Lett. 17, 367 (1966).ADSCrossRefGoogle Scholar
  6. 6.
    D.J. Sandiford and H.A. Fairbank, Phys. Rev. 162, 192 (1967);ADSCrossRefGoogle Scholar
  7. P.V.E. McClintock, K.H. Mueller, R.A. Guyer, and H.A. Fairbank, Proc. 11th Intern. Cont. Low Temp. Phys., 1968, St. Andrews Univ. Press, Scotland (1969), Vol. 1, p. 379.Google Scholar
  8. 7.
    W.R. Roach, Thesis, Univ. of Illinois, 1966, unpublished.Google Scholar
  9. 8.
    G.E. Watson, J.D. Reppy, and R.C. Richardson, Phys. Rev. 188, 384 (1969).ADSCrossRefGoogle Scholar
  10. 9.
    D.K. Biegelsen and K. Luszczynski, Preprint, Washington Univ., St. Louis, Missouri.Google Scholar

Copyright information

© Springer Science+Business Media New York 1974

Authors and Affiliations

  • D. K. Cheng
    • 1
    • 2
  • P. P. Craig
    • 1
    • 2
  • T. A. Kitchens
    • 2
  1. 1.State University of New YorkStony BrookUSA
  2. 2.Brookhaven National LaboratoryUptonUSA

Personalised recommendations