Reentrant layering in rare gas adsorption: preroughening or premelting?

Details Reentrant layering in rare gas adsorption: preroughening or premelting? Reentrant layering in rare gas adsorption: preroughening or premelting?

2000-01-10

arxiv.org/abs/cond-mat/0001098v1

Physics

Condensed Matter

Materials Science

4 pages, 4 figures; accepted for publication in Phys. Rev. Letters

Scientific paper

10.1103/PhysRevLett.84.2203

The reentrant layering transitions found in rare gas adsorption on solid substrates have conflictually been explained either in terms of preroughening (PR), or of top layer melting-solidification phenomena. We obtain adsorption isotherms of Lennard-Jones particles on an attractive substrate by off lattice Grand Canonical Monte Carlo (GCMC) simulation, and reproduce reentrant layering. Microscopic analysis, including layer-by-layer occupancies, surface diffusion and pair correlations, confirms the switch of the top surface layer from solid to quasi-liquid across the transition temperature. At the same time, layer occupancy is found at each jump to switch from close to full to close to half, indicating a disordered flat (DOF) surface and establishing preroughening as the underlying mechanism. Our results suggest that top layer melting is essential in triggering preroughening, which thus represents the threshold transition to surface melting in rare gas solids.

Affiliated with

Also associated with

No associations

Rating

Reentrant layering in rare gas adsorption: preroughening or premelting? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Reentrant layering in rare gas adsorption: preroughening or premelting?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reentrant layering in rare gas adsorption: preroughening or premelting? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-628373