The continuous nucleation of bcc solid ³He from the liquid phase due to the presence of a MgO substrate is detected. For superfluid ⁴He there is no evidence of continuous nucleation of either the hcp or the bcc solid from the substrate. The experiment contrasts the influence of the square lattice of MgO with the triangular lattice of a basal-plane graphite substrate. The phenomenon of pore condensation for solid ³He is discussed.
No takes yet. Share an insight, caveat, or question.
Eckstein et al. (1980) studied this question.
Synapse has enriched one closely related paper. Consider it for comparative context: