Magnetoelectric Effect

Historically, the magnetoelectric effect is defined as magnetic field inducing a proportional electric polarization along with an electric field inducing a proportional magnetization with both effects being described by the same tensor. The effect was predicted by Pierre Curie more than 100 years ago and observed in Cr2O3 more than 50 years ago. Recently, a striking resurgence of interest in the magnetoelectric effect occurred because multiferroics were realized to be a potential source of very pronounced magnetoelectric coupling effects. Along with this the term "magnetoelectric" was interpreted more liberally. It is presently used for almost all types of coupling effects between magnetic and (di)electric properties. We investigate a variety of magnetoelectric coupling effects in a broad range of materials.

Enlarged view: Number of publications on ME effect [web of science, 1]
Number of publications on ME effect [web of science, 1]

Examples are:

  • Giant magnetoelectric coupling effects with a magnetic (electric) field driving electric (magnetic) phase transitions.
  • Symmetric and antisymmetric magnetoelectric coupling and its relation to toroidal moments and magnetic monopoles.
  • Magnetoelectric domain manipulation, preferably with magnetic domains controlled by electric voltages.
  • New magnetoelectric materials.
  • Magnetoelectric effects in heterostructures or at interfaces.
  • Strain-induced magnetoelectric effects.
  • Magnetoelectric effects at domain walls.
Enlarged view: Microscopic sources of ME behaviour [1]
Microscopic sources of ME behaviour [1]

Reference

  1. M. Fiebig: Review: Revival of the Magnetoelectric Effect, Journal of Physics D 38, R123 (2005)
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