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Lightning the Spin: Harnessing the Potential of 2D Magnets in Opto
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Since the emergence of 2D magnets in 2017, the diversity of these materials has greatly expanded. Their 2D nature (atomic-scale thickness) endows these magnets with strong magnetic anisotropy, layer-dependent and switchable magnetic order, and quantum-confined quasiparticles, which distinguish them from conventional 3D magnetic materials. Moreover, the 2D geometry facilitates light incidence for opto-spintronic applications and potential on-chip integration. In analogy to optoelectronics based on optical–electronic interactions, opto-spintronics use light-spin interactions to process spin information stored in the solid state. In this review, opto-spintronics is divided into three types with respect to the wavelengths of radiation interacting with 2D magnets: 1) GHz (microwave) to THz (mid-infrared), 2) visible, and 3) UV to X-rays. It is focused on the recent research advancements on the newly discovered mechanisms of light-spin interactions in 2D magnets and introduces the potential design of novel opto-spintronic applications based on these interactions.
中文翻译：
自 2017 年 2D 磁体出现以来，这些材料的多样性已大大扩展。它们的 2D 性质（原子级厚度）赋予这些磁体强大的磁各向异性、层相关且可切换的磁序以及量子限制的准粒子，这将它们与传统的 3D 磁性材料区分开来。此外，2D 几何形状有利于光自旋电子应用和潜在的片上集成的光入射。与基于光电相互作用的光电子学类似，光自旋电子学使用光自旋相互作用来处理存储在固态中的自旋信息。在本综述中，根据与 2D 磁体相互作用的辐射波长，光自旋电子学分为三种类型：1) GHz（微波）至 THz（中红外）、2) 可见光和 3) UV 至 X 射线。它重点关注二维磁体中新发现的光自旋相互作用机制的最新研究进展，并介绍基于这些相互作用的新型光自旋电子应用的潜在设计。 |
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