Intrinsic Van Der Waals Magnetic Materials from Bulk to the 2D Limit: New Frontiers of Spintronics,Advanced Materials

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Intrinsic Van Der Waals Magnetic Materials from Bulk to the 2D Limit: New Frontiers of Spintronics
Advanced Materials ( IF 27.4 ) Pub Date : 2019-05-08 , DOI: 10.1002/adma.201900065
Hui Li _{1,

2} , Shuangchen Ruan ₁ , Yu‐Jia Zeng ₁

Affiliation

2D van der Waals (vdW) magnets, which present intrinsic ferromagnetic/antiferromagnetic ground states at finite temperatures down to atomic‐layer thicknesses, open a new horizon in materials science and enable the potential development of new spin‐related applications. The layered structure of vdW magnets facilitates their atomic‐layer cleavability and magnetic anisotropy, which counteracts spin fluctuations, thereby providing an ideal platform for theoretically and experimentally exploring magnetic phase transitions in the 2D limit. With reduced dimensions, the susceptibility of 2D magnets to a large variety of external stimuli also makes them more promising than their bulk counterpart in various device applications. Here, the current status of characterization and tuning of the magnetic properties of 2D vdW magnets, particularly the atomic‐layer thickness, is presented. Various state‐of‐the‐art optical and electrical techniques have been applied to reveal the magnetic states of 2D vdW magnets. Other emerging 2D vdW magnets and future perspectives on the stacking strategy are also given; it is believed that they will excite more intensive research and provide unprecedented opportunities in the field of spintronics.

中文翻译：

范德华本质上将磁性材料从大体积扩展到二维极限：自旋电子学的新领域

二维范德华（vdW）磁体在有限的温度下（直至原子层厚度）呈现固有的铁磁/反铁磁基态，为材料科学开辟了新视野，并为新的自旋相关应用提供了潜在的发展机会。vdW磁体的分层结构有利于其原子层的可裂解性和磁各向异性，从而抵消了自旋波动，从而为理论和实验上探索2D极限内的磁相变提供了理想的平台。尺寸减小后，二维磁体对各种外部刺激的敏感性也使其在各种设备应用中比其体积较大的磁体更具前景。这里是二维vdW磁体的表征和磁特性调整的当前状态，特别是原子层的厚度。各种先进的光学和电气技术已被应用来揭示2D vdW磁体的磁态。还给出了其他新兴的2D vdW磁体以及有关堆叠策略的未来观点；相信他们将激发自旋电子学领域的更深入的研究并提供空前的机会。

更新日期：2019-05-08

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