Ferromagnetism in 2D Vanadium Diselenide

TL;DR

This paper reports the discovery of a room-temperature 2D ferromagnetic semiconductor, vanadium diselenide (VSe2), exhibiting enhanced magnetic ordering due to structural anisotropy at the 2D limit.

Contribution

It introduces a new 2D ferromagnetic semiconductor, VSe2, with ferromagnetism at room temperature, unlike previous 2D ferromagnets inherited from bulk materials.

Findings

VSe2 is ferromagnetic at room temperature in 2D form.

Structural anisotropy enhances magnetic ordering.

First demonstration of a 2D ferromagnetic semiconductor at room temperature.

Abstract

Two-dimensional (2D) Van der Waals ferromagnets carry the promise of ultimately miniature spintronics and information storage devices. Among the newly discovered 2D ferromagnets all inherit the magnetic ordering from their bulk ancestors. Here we report a new 2D ferromagnetic semiconductor at room temperature, 2H phase vanadium diselenide (VSe2) which show ferromagnetic at 2D form only. This unique 2D ferromagnetic semiconductor manifests an enhanced magnetic ordering owing to structural anisotropy at 2D limit.