6533b858fe1ef96bd12b6c6a
RESEARCH PRODUCT
Properties of the interface in the confined Ising magnet with competing surface fields
Kurt BinderAndres De VirgiliisAndres De VirgiliisEzequiel V. AlbanoMarcus MüllerMarcus Müllersubject
PhysicsCondensed matter physicsIsing systemCondensed Matter Physics01 natural sciences010305 fluids & plasmasElectronic Optical and Magnetic MaterialsMagnetic fieldFerromagnetismWetting transitionCritical point (thermodynamics)Magnet0103 physical sciencesIsing modelWettingElectrical and Electronic Engineering010306 general physicsdescription
Abstract A two-dimensional magnetic Ising system confined in an L × D geometry ( L ⪡ D ) in the presence of competing magnetic fields (h) acting at opposite walls along the D -direction, exhibits an interface between domains of different orientation that run parallel to the walls. In the limit L → ∞ , this interface undergoes a wetting transition that occurs at the critical curve T w ( h ) , so that for T T w ( h ) such an interface is bound to the walls, while for T w ( h ) ⩽ T T cb the interface is freely fluctuating around the center of the film, where T cb is the bulk critical temperature. By considering both short- and long-range magnetic fields acting at the walls, we study the divergence of the (equilibrated) average position of the interface when approaching the wetting critical point. Furthermore, starting from a monodomain structure with the interface bound to one wall, we also study the dynamics of the interface unbinding.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-02-01 | Physica B: Condensed Matter |