Superconductivity and High-Pressure Performance of 2D Mo2C Crystals

doi:10.1021/acs.jpclett.1c00071

CORC > 金属研究所 > 中国科学院金属研究所

	Superconductivity and High-Pressure Performance of 2D Mo2C Crystals
	Zhang, Junli 1,2; Cao, Zhen 1; He, Xin 1; Liu, Wenhao 1; Wen, Yan 1; Cavallo, Luigi 1; Ren, Wencai 3; Cheng, Huiming 3; Zhang, Xixiang 1
刊名	JOURNAL OF PHYSICAL CHEMISTRY LETTERS
	2021-03-11
卷号	12 期号:9 页码:2219-2225
ISSN号	1948-7185
DOI	10.1021/acs.jpclett.1c00071
通讯作者	Zhang, Xixiang(xixiang.zhang@kaust.edu.sa)
英文摘要	Two-dimensional (2D) materials have attracted significant attention for their ability to support novel magnetoelectrical transport and their optical and magnetic properties, of which their superconductivity is particularly of interest. Here we report on the behavior of superconductivity in 2D Mo2C crystals when hydrostatic pressure is applied, which has not yet been described in the literature. We found that the localization of boundary atoms disorder-induced Cooper pairs can suppress the superconducting transition temperature (T-c) as effectively as a magnetic field and current. We observed that the Tc initially decreased as the pressure increased to 1.75 GPa but then began to increase as the pressure increased further to 2.5 GPa. Our density functional theory calculations revealed that this behavior was linked to the modulation of the strength of the electron-phonon coupling and the electron property, which was triggered by compression of the lattice under high pressure. We attributed the inflection point in the hydrostatic pressure-dependent T-c curve to the structural phase transition of Mo2C from a hexagonal to an orthorhombic structure. This work presents a new avenue for the study of the superconductivity of Mo2C, which can be extended to apply to other 2D superconductors to modulate their electronic states.
资助项目	King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR), Saudi Arabia[OSR-2016-CRG5-2996] ; King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR), Saudi Arabia[OSR-2018-CRG7-3717]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000629172200007
资助机构	King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR), Saudi Arabia
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/162275]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhang, Xixiang
作者单位	1.King Abdullah Univ Sci & Technol KAUST, Div Phys Sci & Engn PSE, Thuwal 239556900, Saudi Arabia 2.Lanzhou Univ, Sch Phys Sci & Technol, Key Lab Magnetism & Magnet Mat, Minist Educ, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Junli,Cao, Zhen,He, Xin,et al. Superconductivity and High-Pressure Performance of 2D Mo2C Crystals[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2021,12(9):2219-2225.
APA	Zhang, Junli.,Cao, Zhen.,He, Xin.,Liu, Wenhao.,Wen, Yan.,...&Zhang, Xixiang.(2021).Superconductivity and High-Pressure Performance of 2D Mo2C Crystals.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,12(9),2219-2225.
MLA	Zhang, Junli,et al."Superconductivity and High-Pressure Performance of 2D Mo2C Crystals".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 12.9(2021):2219-2225.