Abstract
Superfluid 4 He exhibits hysteretic behavior in the porous material Nuclepore due to capillary condensation, and one observes avalanches in the draining for a narrow range of chemical potential. We have demonstrated that the avalanche behavior involves pores distributed at a low density across the entire sample, and that avalanches are enabled by the superfluid film. We present results which compare the behavior of superfluid 4 He in Nuclepore to its behavior in Anopore, a porous membrane having no interconnected pores, and draw conclusions concerning the role of the superfluid film and the pore intersections.
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REFERENCES
M. P. Lilly and R. B. Hallock, J. Low. Temp. Phys. 101, 385 (1995).
M. P. Lilly, A. H. Wootters, and R. B. Hallock, Phys. Rev. Lett. 77, 4222 (1996).
G. P. Crawford, et al, J. Chem. Phys. 96, 7788 (1992).
D. T. Smith, K. M. Godshalk, and R. B. Hallock, Phys. Rev. B 36, 202 (1987).
M. P. Lilly, P. T. Finley, and R. B. Hallock, Phys. Rev. Lett. 71, 4186 (1993).
M. P. Lilly, PH. D. Dissertation, Univ. of Mass., 1997 (Unpublished).
See, for example, E. Vives and A. Planes, Phys. Rev. B 50, 3839 (1994).
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Wootters, A.H., Lilly, M.P. & Hallock, R.B. Hysteresis and Avalanche Behavior of Helium in Anopore and Nuclepore. Journal of Low Temperature Physics 110, 561–566 (1998). https://doi.org/10.1023/A:1022567102132
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DOI: https://doi.org/10.1023/A:1022567102132