Critical Casimir effect near the (3)He-(4)He tricritical point.


We present capacitance measurements of the equilibrium thickness of (3)He-(4)He mixture films as a function of temperature and concentration. The films are adsorbed on a Cu substrate situated above bulk liquid mixture. As we scan across the tricritical point, we observe a thickening of the film indicating the presence of a repulsive critical Casimir force.

Cite this paper

@article{Garcia2002CriticalCE, title={Critical Casimir effect near the (3)He-(4)He tricritical point.}, author={Ray Garcia and Moses H. W. Chan}, journal={Physical review letters}, year={2002}, volume={88 8}, pages={086101} }