Zhou Wenda, Chen Mingyue, Yuan Cailei, Huang He, Zhang Jingyan, Wu Yanfei, Zheng Xinqi, Shen Jianxin, Wang Guyue, Wang Shouguo, Shen Baogen
School of Materials Science and Engineering, Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China.
Jiangxi Key Laboratory of Nanomaterials and Sensors, School of Physics, Communication and Electronics, Jiangxi Normal University, Nanchang 330022, China.
Materials (Basel). 2022 Feb 24;15(5):1716. doi: 10.3390/ma15051716.
Exploration for the new members of air-stable 2D antiferromagnetic magnets to widen the magnetic families has drawn great attention due to its potential applications in spintronic devices. In addition to seeking the intrinsic antiferromagnets, externally introducing antiferromagnetic ordering in existing 2D materials, such as structural regulation and phase engineering, may be a promising way to modulate antiferromagnetism in the 2D limit. In this work, the in situ nitrogen doping growth of ultrathin 2D CrS nanoflakes has been achieved. Antiferromagnetic ordering in 2D CrS nanoflakes can be triggered by nitrogen doping induced new phase (space group P3¯1c). This work provides a new route to realize antiferromagnetism in atomically thin 2D magnets and greatly extend applications of 2D magnets in valleytronics and spintronics.
探索空气稳定的二维反铁磁体的新成员以拓宽磁性家族，因其在自旋电子器件中的潜在应用而备受关注。除了寻找本征反铁磁体之外，在现有二维材料中通过外部引入反铁磁序，如结构调控和相工程，可能是在二维极限下调控反铁磁性的一种有前景的方法。在这项工作中，实现了超薄二维CrS纳米片的原位氮掺杂生长。二维CrS纳米片中的反铁磁序可由氮掺杂诱导的新相（空间群P3¯1c）触发。这项工作为在原子级薄的二维磁体中实现反铁磁性提供了一条新途径，并极大地扩展了二维磁体在谷电子学和自旋电子学中的应用。
