Exploitable Magnetic Anisotropy of the Two-Dimensional Magnet CrI3

• DOI: 10.1021/acs.nanolett.9b03815
• Publication Date: 2019-12-30T12:21:13Z
• Authors: Jeongwoo Kim; Kyoung-Whan Kim; Bumseop Kim; Chang-Jong Kang; Dongbin Shin; Sang-Hoon Lee; Byoung-Chul Min; Noejung Park
• Keywords: 530; 01 natural sciences; 0104 chemical sciences

Magnetic anisotropy often plays a central role in various static and dynamic properties of magnetic materials. In particular, for two-dimensional (2D) van der Waals materials, as inferred from the Mermin-Wagner theorem, it is an essential prerequisite stabilizing ferromagnetic order. this work, we carry out first-principles calculations CrI3 monolayer investigate how its interrelated to adjustable parameters governing underlying electronic structure. We explore routes controlled manipulation anisotropy: chemical adsorption, substitutional doping, optical excitation, charge transfer through heterostructure. vertical stacking graphene noteworthy regard controlling spin axis switchable between out-of-plane in-plane directions, which accompanied by variation energy up 500%. Our results show possibility that control 2D magnet may enable development advanced spintronic device with enhanced efficiency high operation speed.