材料科学
自旋电子学
凝聚态物理
双极扩散
铁磁性
纳米技术
剥脱关节
半导体
基质(水族馆)
化学气相沉积
光电子学
磁性半导体
铁磁性
磁化
化学工程
磁场
石墨烯
电子
量子力学
海洋学
物理
地质学
工程类
作者
Fangfang Cui,Xiaoxu Zhao,Junjie Xu,Bin Tang,Qiuyu Shang,Jianping Shi,Yahuan Huan,Jianhui Liao,Chen Qing,Yanglong Hou,Qing Zhang,Stephen J. Pennycook,Yanfeng Zhang
标识
DOI:10.1002/adma.201905896
摘要
Abstract 2D magnetic materials have attracted intense attention as ideal platforms for constructing multifunctional electronic and spintronic devices. However, most of the reported 2D magnetic materials are mainly achieved by the mechanical exfoliation route. The direct synthesis of such materials is still rarely reported, especially toward thickness‐controlled synthesis down to the 2D limit. Herein, the thickness‐tunable synthesis of nanothick rhombohedral Cr 2 S 3 flakes (from ≈1.9 nm to tens of nanometers) on a chemically inert mica substrate via a facile chemical vapor deposition route is demonstrated. This is accomplished by an accurate control of the feeding rate of the Cr precursor and the growth temperature. Furthermore, it is revealed that the conduction behavior of the nanothick Cr 2 S 3 is variable with increasing thickness (from 2.6 to 4.8 nm and >7 nm) from p‐type to ambipolar and then to n‐type. Hereby, this work can shed light on the scalable synthesis, transport, and magnetic properties explorations of 2D magnetic materials.
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