All optical resonant magnetization switching in $\text{CrI}_3$ monolayers

TL;DR

This paper demonstrates all-optical magnetization switching in monolayer CrI3 using resonant circularly polarized light pulses, highlighting its potential for spintronics and ultra-fast magnetic memory applications.

Contribution

It introduces a novel method for switching magnetization in CrI3 monolayers using resonant optical pulses, without external magnetic fields.

Findings

Magnetization can be switched optically in CrI3 monolayers.

Efficient coupling between lattice magnetization and excitonic transitions.

Potential for applications in spintronics and ultra-fast magnetic memory.

Abstract

Efficient control of a magnetization without an application of the external magnetic fields is the ultimate goal of spintronics. We demonstrate, that in monolayers of $\text{CrI}_3$, magnetization can be switched all optically, by application of the resonant pulses of circularly polarized light. This happens because of the efficient coupling of the lattice magnetization with bright excitonic transition. $\text{CrI}_3$ is thus perspective functional material with high potential for applications in the domains of spintronics and ultra-fast magnetic memory.