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Temperature Dependent Spatial Order in Superfluid and Normal 4He
Physical Review Letters (1979)
  • Robert Hallock, University of Massachusetts - Amherst
  • H. N Robkoff
  • D. A Ewen
Measurements of the structure factor S(k) for 4He at constant density above and below Tλ are reported. The results show a clear loss of spatial order on cooling through Tλ. Application of the theory of Cummings, Hyland, and Rowlands to the data allows a measurement of the condensate fraction for He II.
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Robert Hallock, H. N Robkoff and D. A Ewen. "Temperature Dependent Spatial Order in Superfluid and Normal 4He" Physical Review Letters Vol. 43 Iss. 27 (1979)
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