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Composition and phase engineering of metal chalcogenides and phosphorous chalcogenides

Author(s)
Zhou, JiadongZhu, ChaoZhou, YaoDong, JichenLi, PeilingZhang, ZhaoweiWang, ZhenLin, Yung-ChangShi, JiaZhang, RunwuZheng, YanzhenYu, HuimeiTang, BijunLiu, FucaiWang, LinLiu, LiweiLiu, Gui-BinHu, WeidaGao, YanfengYang, HaitaoGao, WeiboLu, LiWang, YeliangSuenaga, KazuLiu, GuangtongDing, FengYao, YuguiLiu, Zheng
Issued Date
2023-04
DOI
10.1038/s41563-022-01291-5
URI
https://scholarworks.unist.ac.kr/handle/201301/58855
Citation
NATURE MATERIALS, v.22, pp.450 - 458
Abstract
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. A competitive-chemical-reaction-based growth mechanism by controlling the kinetic parameters can easily realize the growth of transition metal chalcogenides and transition metal phosphorous chalcogenides with different compositions and phases.
Publisher
NATURE PORTFOLIO
ISSN
1476-1122
Keyword
SUPERCONDUCTIVITY

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