Anomaly in the stability limit of liquid 3He |
| |
Authors: | Caupin F Balibar S Maris H J |
| |
Institution: | Laboratoire de Physique Statistique de l'Ecole Normale Supérieure, associé aux Universités Paris 6 et Paris 7 et au CNRS, 24 rue Lhomond, 75231 Paris Cedex 05, France. |
| |
Abstract: | We propose that the liquid-gas spinodal line of 3He reaches a minimum at 0.4 K. This feature is supported by our cavitation measurements. We also show that it is consistent with extrapolations of sound-velocity measurements. Speedy J. Phys. Chem. 86, 3002 (1982)] previously proposed this peculiar behavior for the spinodal of water and related it to a change in sign of the expansion coefficient alpha, i.e., a line of density maxima. 3He exhibits such a line at positive pressure. We consider its extrapolation to negative pressure. Our discussion raises fundamental questions about the sign of alpha in a Fermi liquid along its spinodal. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|