Analog of surface melting in a macroscopic nonequilibrium system.

Journal Article (Journal Article)

Agitated wet granular matter can be considered as a nonequilibrium model system for phase transitions, where the macroscopic particles replace the molecules and the capillary bridges replace molecular bonds. It is demonstrated experimentally that a two-dimensional wet granular crystal driven far from thermal equilibrium melts from its free surface, preceded by an amorphous state. The transition into the surface melting state, as revealed by the bond orientational order parameters, behaves like a first order phase transition, with a threshold being traceable to the rupture energy of a single capillary bridge. The observation of such a transition in the macroscopic nonequilibrium system triggers the question of the universality of surface melting.

Full Text

Duke Authors

Cited Authors

  • May, C; Wild, M; Rehberg, I; Huang, K

Published Date

  • December 5, 2013

Published In

Volume / Issue

  • 88 / 6

Start / End Page

  • 062201 -

PubMed ID

  • 24483430

Electronic International Standard Serial Number (EISSN)

  • 1550-2376

International Standard Serial Number (ISSN)

  • 1539-3755

Digital Object Identifier (DOI)

  • 10.1103/physreve.88.062201

Language

  • eng