作者
Jiadong Zhou,Chao Zhu,Yao Zhou,Jichen Dong,Peiling Li,Zhaowei Zhang,Zhen Wang,Yung‐Chang Lin,Jia Shi,Run-Wu Zhang,Yan‐Zhen Zheng,Huimei Yu,Bijun Tang,Fucai Liu,Lin Wang,Liwei Liu,Gui-Bin Liu,Weida Hu,Yanfeng Gao,Yang Hu,Weibo Gao,Li Lü,Yeliang Wang,Kazu Suenaga,Guangtong Liu,Feng Ding,Yugui Yao,Zheng Liu
摘要
Two-dimensional (2D) materials with multiphase, multielement crystals such as transition metal chalcogenides (TMCs) (based on V, Cr, Mn, Fe, Cd, Pt and Pd) and transition metal phosphorous chalcogenides (TMPCs) offer a unique platform to explore novel physical phenomena. However, the synthesis of a single-phase/single-composition crystal of these 2D materials via chemical vapour deposition is still challenging. Here we unravel a competitive-chemical-reaction-based growth mechanism to manipulate the nucleation and growth rate. Based on the growth mechanism, 67 types of TMCs and TMPCs with a defined phase, controllable structure and tunable component can be realized. The ferromagnetism and superconductivity in FeXy can be tuned by the y value, such as superconductivity observed in FeX and ferromagnetism in FeS2 monolayers, demonstrating the high quality of as-grown 2D materials. This work paves the way for the multidisciplinary exploration of 2D TMPCs and TMCs with unique properties.