反铁磁性
磁性
伊辛模型
凝聚态物理
铁磁性
范德瓦尔斯力
海森堡模型
物理
材料科学
算法
计算机科学
量子力学
分子
作者
Nihad Abuawwad,Manuel dos Santos Dias,H. Abusara,Samir Lounis
出处
期刊:Physical review
日期:2023-09-05
卷期号:108 (9)
标识
DOI:10.1103/physrevb.108.094409
摘要
The discovery of two-dimensional (2D) van der Waals magnetic materials and their heterostructures provided an exciting platform for emerging phenomena with intriguing implications in information technology. Here, based on a multiscale modeling approach that combines first-principles calculations and a Heisenberg model, we demonstrate that interfacing a ${\mathrm{CrTe}}_{2}$ layer with various Te-based layers enables the control of the magnetic exchange and Dzyaloshinskii-Moriya interactions as well as the magnetic anisotropy energy of the whole heterobilayer, and thereby the emergence of topological magnetic phases such as skyrmions and antiferromagnetic N\'eel merons. The latter are novel particles in the world of topological magnetism since they arise in a frustrated N\'eel magnetic environment and manifest as multiples of intertwined hexamer textures. Our findings pave a promising road for proximity-induced engineering of both ferromagnetic and long-sought antiferromagnetic chiral objects in the very same 2D material, which is appealing for information technology devices employing quantum materials.
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