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 |
|---|---|
| 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 |