CrI3/CrSe2 异质结构中的层间磁相互作用

IF 3.5 2区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Chinese Physics Letters Pub Date : 2024-04-30 DOI:10.1088/0256-307x/41/5/057401

Qiu-Hao Wang, 秋皓王, Mei-Yan Ni, 美燕倪, Shu-Jing Li, 淑静李, Fa-Wei Zheng, 法伟郑, Hong-Yan Lu, 洪艳路, Ping Zhang and 平张

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引用次数: 0

摘要

基于第一原理计算，我们系统地研究了由 CrI3 和 CrSe2 单层组成的异质层的堆积能和层间磁相互作用。研究发现，堆积顺序在层间磁耦合中起着至关重要的作用。在所有可能的堆叠结构中，AA 堆垛是最稳定的异质结构，表现出层间反铁磁相互作用。有趣的是，层间磁相互作用可以通过双轴应变进行有效调节。4.3% 的压缩应变将导致所有堆叠阶的层间铁磁相互作用。这些结果揭示了 CrI3/CrSe2 异质结构的磁特性，有望应用于自旋电子器件。

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Interlayer Magnetic Interaction in the CrI3/CrSe2 Heterostructure

Based on first-principles calculations, we systematically study the stacking energy and interlayer magnetic interaction of the heterobilayer composed of CrI3 and CrSe2 monolayers. It is found that the stacking order plays a crucial role in the interlayer magnetic coupling. Among all possible stacking structures, the AA-stacking is the most stable heterostructure, exhibiting interlayer antiferromagnetic interactions. Interestingly, the interlayer magnetic interaction can be effectively tuned by biaxial strain. A 4.3% compressive strain would result in a ferromagnetic interlayer interaction in all stacking orders. These results reveal the magnetic properties of CrI3/CrSe2 heterostructure, which is expected to be applied to spintronic devices.

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来源期刊

Chinese Physics Letters 物理-物理：综合

CiteScore

5.90

自引率

8.60%

发文量

13238

审稿时长

4 months

期刊介绍： Chinese Physics Letters provides rapid publication of short reports and important research in all fields of physics and is published by the Chinese Physical Society and hosted online by IOP Publishing.