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Critical phenomena in fluid films: Scaling crossover and law of corresponding states

Journal Article · · Phys. Rev. Lett.; (United States)
Thirty-two coexistence curves were measured for films of a critical mixture of 2,6-lutidine + water for film thicknesses 0.46 ..mu..m < or = L < or approx. = 14 ..mu..m. For a sample of twenty-eight films with L < 6 ..mu..m, the coexistence curves show a crossover from three-dimensional scaling characterized by ..beta.. = 0.332 +- 0.003 to two-dimensional Ising-model scaling with ..beta.. = 0.126 +- 0.005. The scaling requirement that a law of corresponding states exists for such films has been confirmed.
Research Organization:
Department of Physics and Astrophysics, University of Colorado, Boulder, Colorado 80309
OSTI ID:
5942249
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 43:8; ISSN PRLTA
Country of Publication:
United States
Language:
English