Nucleation in dilute 3He-4He liquid mixtures at low temperatures

Details Nucleation in dilute 3He-4He liquid mixtures at low temperatures Nucleation in dilute 3He-4He liquid mixtures at low temperatures

1999-07-22

arxiv.org/abs/cond-mat/9907337v1

J. of Low Temp. Phys. 117 (1999), 81

Physics

Condensed Matter

To appear in J. of Low Temp. Physics

Scientific paper

We present a study of phase separation from supersaturated 3He-4He liquid mixtures at low temperatures addressing both the degree of critical supersaturation Dx and the thermal-to-quantum crossover temperature T* for the nucleation process. Two different nucleation seeds are investigated, namely 3He droplets and 4He vortex lines with cores filled with 3He. We have found that the experimental T* is reproduced when we consider that nucleation proceeds from 3He droplets, whereas Dx is reproduced when we consider 4He vortex lines filled with 3He. However, neither nucleation configuration is able to simultaneously reproduce the current experimental information on Dx and T*.

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