论文标题

二维CRTE $ _2 $中的非共线磁性

Noncollinear magnetism in two-dimensional CrTe$_2$

论文作者

Abuawwad, Nihad, Dias, Manuel dos Santos, Abusara, Hazem, Lounis, Samir

论文摘要

发现二维(2D)范德华磁铁为量子材料中磁性的基本探索和实现下一代Spintronic设备的实现提供了前所未有的机会。在这里,基于一种多尺度建模方法,该方法结合了第一原理计算和带有AB-Initio参数的Heisenberg模型,我们报告了CRTE $ _2 $的独立单层中的强磁弹性耦合。我们证明,单个CRTE $ _2 $的不同晶体结构通过磁性挫败感和dzyaloshinskii-Moriya相互作用(DMI)的出现引起了非共线磁性。利用原子自旋动力学,我们对与这种2D材料有关的复杂磁性特性进行了详细研究,该材料受到与电荷密度波相似的各种结构畸变影响的影响。

The discovery of two-dimensional (2D) van der Waals magnets opened unprecedented opportunities for the fundamental exploration of magnetism in quantum materials and the realization of next generation spintronic devices. Here, based on a multiscale modelling approach that combines first-principles calculations and a Heisenberg model supplied with ab-initio parameters, we report a strong magnetoelastic coupling in a free-standing monolayer of CrTe$_2$. We demonstrate that different crystal structures of a single CrTe$_2$ give rise to non-collinear magnetism through magnetic frustration and emergence of the Dzyaloshinskii-Moriya interaction (DMI). Utilizing atomistic spin dynamics, we perform a detailed investigation of the complex magnetic properties pertaining to this 2D material impacted by the presence of various types of structural distortions akin to charge density waves.

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