Ferromagnet/Insulator/Ferroelectric nanometer multilayer for multiferroictronics

TL;DR

This paper explores how magnetic and electric properties in ferromagnet/insulator/ferroelectric multilayers can be controlled by external fields, enabling potential applications in multiferroic spintronic devices.

Contribution

It introduces a theoretical analysis of field-induced magnetization and polarization changes in FM/I/FE multilayers using the Stoner-Wohlfarth and Landau models, demonstrating multi-state capabilities.

Findings

Magnetization and polarization can be significantly modified by external fields.

Multiple stable states of combined magnetization and polarization are achievable.

The results support the integration of spintronics and ferroelectrics in multiferroic devices.

Abstract

We have investigated the field-induced-changes in both the magnetization and the polarization in ferromagnet/Insulator/ferroelectric (FM/I/FE) multilayer by following both the Stoner-Wohlfarth (SW) model and the Landau theory. It has been found that with the stresses introduced in the FM/I/FE structure by the fields, both the magnetization and the polarization states can be significantly modified and the combination of their states can be of multiple states. These results demonstrate the feasibility of combining both the spintronics and the ferroelectrics into the multiferroictronics.