Critical Opalescent Light Scattering in 3He-4He Mixtures Near the Tricritical Point

  • D. Randolf Watts
  • Watt W. Webb


Mixtures of the two isotopes 3He-4He display a “tricritical point” at the junction of a “lambda” line of superfluid transitions and the consolute critical point, where a first-order miscibility gap goes continuously into perfect miscibility.1 The simultaneous occurrence of two transitions in this critical region provides particularly stringent tests of theories of critical points.


Critical Exponent Coherence Length Scattered Intensity Gravitational Effect Tricritical Point 
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Copyright information

© Springer Science+Business Media New York 1974

Authors and Affiliations

  • D. Randolf Watts
    • 1
  • Watt W. Webb
    • 1
  1. 1.School of Applied and Engineering Physics and Laboratory for Atomic and Solid State PhysicsCornell UniversityIthacaUSA

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