论文标题

1T-FES $ _2 $$:$一种新型的二维金属Ferromagnet

1T-FeS$_2$$:$ a new type of two-dimensional metallic ferromagnet

论文作者

Nair, Govindan Kutty Rajendran, Ji, Xiaoyu, Guo, Dong, Zhu, Chao, Xu, Xiaodong, Zheng, Xinyi, Yang, Xue, Cui, Jian, Li, Peiling, Wang, Xiaowei, Yao, Wu, Zhou, Jiadong, Salim, Teddy, Yi, Jian, Ma, Fengcai, Yang, Changli, Ke, Hua, Qu, Fanming, Shen, Jie, Jing, Xiunian, Liu, Zheng, Li, Xingji, Liu, Guangtong, Lu, Li

论文摘要

固有的二维(2D)磁性材料的发现对于理解2D磁性的基本原理和实现下一代磁电机和磁光学设备至关重要。尽管已经通过去角质去角质磁性材料来致力于识别2D磁性,但很少进行研究以直接用于直接用于非上层磁性材料的超薄磁性材料。在这里,我们通过熔融 - 盐辅助化学蒸气沉积(CVD)方法报告了一种新型理论上提出的2D金属铁磁铁1T FES2的成功合成。远程2D铁磁秩序是通过观察到大的异常效应(AHE)和滞后磁力的。实验检测到的平面外铁磁序理论上是用石膏标准进行的。我们的发现开辟了新的可能性,可以在非层次化合物中搜索新颖的2D铁磁体,并为实现现实的超薄自旋设备提供了机会。

Discovery of intrinsic two-dimensional (2D) magnetic materials is crucial for understanding the fundamentals of 2D magnetism and realizing next-generation magnetoelectronic and magneto-optical devices. Although significant efforts have been devoted to identifying 2D magnetism by exfoliating bulk magnetic layered materials, seldom studies are performed to synthesize ultra-thin magnetic materials directly for non-layered magnetic materials. Here, we report the successful synthesis of a new type of theoretically proposed 2D metallic ferromagnet 1T FeS2, through the molten-salt-assisted chemical vapor deposition (CVD) method. The long-range 2D ferromagnetic order is confirmed by the observation of a large anomalous Hall effect (AHE) and a hysteretic magnetoresistance. The experimentally detected out-of-plane ferromagnetic ordering is theoretically suported with Stoner criterion. Our findings open up new possibilities to search novel 2D ferromagnets in non-layered compounds and render opportunities for realizing realistic ultra-thin spintronic devices.

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