Monte Carlo simulation of charge mediated magnetoelectricity in multiferroic bilayers

Simulations of a bilayer ferroelectric/ferromagnetic multiferroic system were carried out, based on the Monte Carlo method and Metropolis dynamics. A generic model was implemented with a Janssen-like Hamiltonian, taking into account magnetoelectric interactions due to charge accumulation at the inte...

Full description

Saved in:
Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2014-12, Vol.454, p.235-239
Main Authors: Ortiz-Álvarez, H.H., Bedoya-Hincapié, C.M., Restrepo-Parra, E.
Format: Article
Language:English
Subjects:
Accumulation
Charge
Computer simulation
Condensed matter
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Depletion
Dynamical systems
Dynamics
Exact sciences and technology
Ferromagnetism
Magnetic properties and materials
Magnetoelectric effect
Magnetomechanical and magnetoelectric effects, magnetostriction
Monte Carlo
Monte Carlo methods
Multiferroic heterostructures
Physics
Transition points
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Simulations of a bilayer ferroelectric/ferromagnetic multiferroic system were carried out, based on the Monte Carlo method and Metropolis dynamics. A generic model was implemented with a Janssen-like Hamiltonian, taking into account magnetoelectric interactions due to charge accumulation at the interface. Two different magnetic exchange constants were considered for accumulation and depletion states. Several screening lengths were also included. Simulations exhibit considerable magnetoelectric effects not only at low temperature, but also at temperature near to the transition point of the ferromagnetic layer. The results match experimental observations for this kind of structure and mechanism.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2014.08.002