Liquid 3He-4He mixture phase diagram in restricted geometry

Автор(и)

  • I.A. Degtiarov B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47 Lenin Ave., Kharkov 61103, Ukraine
  • S.S. Sokolov B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47 Lenin Ave., Kharkov 61103, Ukraine

DOI:

https://doi.org/10.1063/1.3677233

Ключові слова:

helium isotopes, liquid solutions, phase diagram of liquid solutions 3He–4He.

Анотація

The influence of van der Waals forces on the decay of liquid solutions of helium isotopes is studied theoretically and the conditions for the phase co-existence in a confined geometry are investigated. As the models to account the influence of van der Waals forces on the helium isotope solution the gap between two parallel planes and the cylindrical channel are considered. For each of the models we calculated the concentration profile inside the channel depending on the van der Waals constant, the initial solution concentration and the size of the channel. The phase diagrams of liquid solutions are constructed. The obtained liquid mixture phase diagrams are compared with the “bulk” phase diagram. A rather good agreement between theoretical and experimental phase diagrams is obtained for liquid helium mixture in aerogel.

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Опубліковано

2011-11-22

Як цитувати

(1)
Degtiarov, I.; Sokolov, S. Liquid 3He-4He Mixture Phase Diagram in Restricted Geometry. Fiz. Nizk. Temp. 2011, 38, 20-27.

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Квантові рідини та квантові кристали

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