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Updated: Jun 3, 2026

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Published on: August 15, 2018

Interlayer exchange coupling across a ferroelectric barrier.

M Ye Zhuravlev¹, A V Vedyayev, E Y Tsymbal

¹Department of Physics and Astronomy, Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, NE 68588, USA. myezhur@gmail.com

Journal of Physics. Condensed Matter : an Institute of Physics Journal

|March 16, 2011

Summary

This summary is machine-generated.

Researchers predict a new magnetoelectric effect where electric fields switch magnetic coupling in layered materials. This discovery enables magnetic configuration control via ferroelectric polarization reversal.

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Area of Science:

Condensed Matter Physics
Materials Science
Spintronics

Background:

Interlayer exchange coupling (IEC) is crucial in magnetic heterostructures.
Ferroelectric materials offer tunable electronic properties via polarization.
Combining ferromagnetic and ferroelectric materials is key for novel device functionalities.

Purpose of the Study:

To predict and theoretically demonstrate a novel magnetoelectric effect.
To explore the control of interlayer exchange coupling (IEC) using ferroelectric polarization.
To investigate the potential for electric-field-driven magnetic switching in asymmetric heterostructures.

Main Methods:

Theoretical modeling of magnetoelectric coupling in ferromagnet/ferroelectric/ferromagnet junctions.
Simulation of the influence of ferroelectric polarization switching on IEC.
Analysis of electrostatic potential profiles across the junction.

Main Results:

A new magnetoelectric effect is predicted, driven by interlayer exchange coupling.
Ferroelectric polarization switching by an external electric field causes significant changes in IEC.
The effect is observed in asymmetric ferromagnet/ferroelectric/ferromagnet junctions.

Conclusions:

The predicted magnetoelectric effect offers a pathway for electric-field control of magnetic coupling.
Reversing ferroelectric polarization can switch the magnetic configuration of the junction.
This phenomenon opens possibilities for low-power magnetic memory and logic devices.