MELTING of VANADIUM with E. Polturak and V. Sorkin
- FURTHER QUESTIONS: Kanigel et al - relatively small samples with specific potential. Does this apply more widely? What happens near surfaces, how do the layers mix????
- SURFACE MELTING: This is hinted at by absence of
superheating of solids. The melting of the solid, which is kept
at a homogeneous temperature, always begins at its free
The formation of thin liquid surface layer, which is observed
experimentally, eliminates the barrier for nucleation of the
Some claim this
phenomenon resembles wetting of the solid by its own
- CONCLUSIONS: Surface premelting WAS MOST pronounced for the loosest packed Va(111) surface. At melting, the Born criterion led to a linear relation between the surface defect formation energy (which for the 111 surface was close to the value predicted by EP from experimental and bulk measurements) and Tm.