# Reversible electric-field-driven magnetization in a columnar nanocomposite film

## TL;DR

This paper demonstrates reversible control of magnetization in a nanocomposite film using electric fields, enabling room-temperature magnetic manipulation through strain-induced anisotropy changes.

## Contribution

It introduces a method for reversible electric-field-driven magnetization control in self-assembled nanocomposites at room temperature.

## Key findings

- Electric fields induce significant, reversible changes in magnetization.
- Magnetization control is achieved via strain-induced magnetic anisotropy.
- The approach works at room temperature.

## Abstract

Magnetic hysteresis loops show a moderate perpendicular anisotropy of the magnetostrictive CFO pillars, which is related to their vertical compression. The application of an electric field to the electromechanical PMN-PT substrate produced significant and reversible changes in the magnetization due to an additional strain-induced magnetic anisotropy. This demonstrates completely reversible, room-temperature electric-field-assisted control of magnetization in self-assembled vertical nanocomposites of CFO and BFO.

---
Source: https://tomesphere.com/paper/1904.06568