Abstract
Ground-state properties of two-dimensional 3He−4He
mixtures are studied at zero temperature. A general argument based on
the long-ranged attraction of the phonon exchange is given for the
existence of 3He dimers in low-concentration mixtures with 4He. The binding energy of dimers ranges from milli- to microkelvins with increasing 4He density. By comparing the 3He impurity chemical potential in 4He with the one in pure 3He we conclude that at finite pressures 3He dimers form a mixture with 4He with a maximum solubility of ≈3%.
Original language | English |
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Pages (from-to) | 2344-2347 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 85 |
DOIs | |
Publication status | Published - 2000 |
MoE publication type | A1 Journal article-refereed |