Room-temperature Ferroelectric Control of 2D Layered Magnetism

TL;DR

This paper demonstrates room-temperature control of 2D layered magnetism using ferroelectric switching, enabling low-power, reversible magnetic state manipulation for advanced electronic applications.

Contribution

It introduces a novel ferroelectric/ferromagnet heterostructure that achieves stable, reversible magnetic switching at room temperature with ultra-low energy consumption.

Findings

Achieved ~43% change in magnetization through ferroelectric control.

Energy consumption per operation is less than 1 femtojoule.

Demonstrated potential for reconfigurable spintronic devices.

Abstract

Electrical tuning of magnetism is crucial for developing fast, compact, ultra-low power electronic devices. Multiferroics offer significant potential due to their ability to control magnetic via an electric field through magnetoelectric coupling, especially in layered ferroelectric/ferromagnet heterostructures. A key challenge is achieving reversible and stable switching between distinct magnetic states using a voltage control. In this work, we present ferroelectric tuning of room-temperature magnetism in a 2D layered ferromagnet. The energy-efficient control consumes less than 1 fJ per operation which is normally in the order of several aJ, resulting in a ~43% change in magnetization. This tunable multiferroic interface and associated devices provide promising opportunities for next-generation reconfigurable communication systems, spintronics, sensors and memories.