Solid-liquid transition in 2D dipolar systems - Archive ouverte HAL
Article Dans Une Revue EPL - Europhysics Letters Année : 2006

Solid-liquid transition in 2D dipolar systems

Jcs Levy
  • Fonction : Auteur

Résumé

The solid-liquid phase diagram of two-dimensional, laterally confined systems made of interacting parallel dipoles normal to the plane is investigated by Monte Carlo method. The lowest-energy solid phase is relaxed from a regular triangular lattice. This Wigner crystal phase keeps the main features of the original monocrystal. On the other hand, the solid phase relaxed from a random initial configuration has a slightly higher energy and is called Wigner glass. It exhibits randomly oriented crystallites separated by chains of topological defects, namely alternate 5- and 7-nearest-neighbour sites. These chains start to move within the solid phase at a temperature lower than the bulk melting temperature.

Dates et versions

hal-01293163 , version 1 (24-03-2016)

Identifiants

Citer

A Ghazali, Jcs Levy. Solid-liquid transition in 2D dipolar systems. EPL - Europhysics Letters, 2006, 74 (2), pp.355-361. ⟨10.1209/epl/i2005-10532-1⟩. ⟨hal-01293163⟩
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