Knowledge Management System of Hefei Institute of Physical Science,CAS
Phonon-mediated superconductivity in two-dimensional hydrogenated phosphorus carbide: HPC3 | |
Li, Ya-Ping1; Yang, Liu1; Liu, Hao-Dong1; Jiao, Na1; Ni, Mei-Yan1; Hao, Ning2; Lu, Hong-Yan1; Zhang, Ping1,3 | |
2022-04-20 | |
发表期刊 | PHYSICAL CHEMISTRY CHEMICAL PHYSICS |
ISSN | 1463-9076 |
通讯作者 | Lu, Hong-Yan(hylu@qfnu.edu.cn) ; Zhang, Ping(pzhang2012@qq.com) |
摘要 | In recent years, three-dimensional (3D) high-temperature superconductors at ultrahigh pressure have been reported, typical examples are the polyhydrides H3S, LaH10, YH9, etc. To find high-temperature two-dimensional (2D) superconductors at atmospheric pressure is another research hotspot. Here, we investigated the possible superconductivity in a hydrogenated monolayer phosphorus carbide based on first-principles calculations. The results reveal that monolayer PC3 transforms from a semiconductor to a metal after hydrogenation. Interestingly, the C-pi-bonding band contributes most to the states at the Fermi level. Based on the electron-phonon coupling mechanism, it is found that the electron-phonon coupling constant of HPC3 is 0.95, which mainly originates from the coupling of C-pi electrons with the in-plane vibration modes of C and H. The calculated critical temperature T-c is 31.0 K, which is higher than those in most 2D superconductors. By further applying a biaxial tensile strain of 3%, the T-c can be boosted to 57.3 K, exceeding the McMillan limit. Thus, hydrogenation and strain are effective ways for increasing the superconducting T-c of 2D materials. |
DOI | 10.1039/d2cp00997h |
关键词[WOS] | TRANSITION-TEMPERATURE ; LANTHANUM ; GRAPHENE ; HYDRIDE |
收录类别 | SCI |
语种 | 英语 |
资助项目 | National Natural Science Foundation of China[12074213] ; National Natural Science Foundation of China[11574108] ; National Natural Science Foundation of China[12104253] ; National Natural Science Foundation of China[12022413] ; National Natural Science Foundation of China[11674331] ; Major Basic Program of Natural Science Foundation of Shandong Province[ZR2021ZD01] ; Project of Introduction and Cultivation for Young Innovative Talents in Colleges and Universities of Shandong Province ; 'Strategic Priority Research Program (B)' of the Chinese Academy of Sciences[XDB33030100] ; '100 Talents Project' of the Chinese Academy of Sciences ; Collaborative Innovation Program of Hefei Science Center, CAS[2020HSCCIP002] ; CASHIPS Director's Fund[BJPY2019B03] |
项目资助者 | National Natural Science Foundation of China ; Major Basic Program of Natural Science Foundation of Shandong Province ; Project of Introduction and Cultivation for Young Innovative Talents in Colleges and Universities of Shandong Province ; 'Strategic Priority Research Program (B)' of the Chinese Academy of Sciences ; '100 Talents Project' of the Chinese Academy of Sciences ; Collaborative Innovation Program of Hefei Science Center, CAS ; CASHIPS Director's Fund |
WOS研究方向 | Chemistry ; Physics |
WOS类目 | Chemistry, Physical ; Physics, Atomic, Molecular & Chemical |
WOS记录号 | WOS:000779732300001 |
出版者 | ROYAL SOC CHEMISTRY |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.hfcas.ac.cn:8080/handle/334002/128662 |
专题 | 中国科学院合肥物质科学研究院 |
通讯作者 | Lu, Hong-Yan; Zhang, Ping |
作者单位 | 1.Qufu Normal Univ, Sch Phys & Phys Engn, Qufu 273165, Shandong, Peoples R China 2.Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme, High Magnet Field Lab, HFIPS, Hefei 230031, Peoples R China 3.Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Ya-Ping,Yang, Liu,Liu, Hao-Dong,et al. Phonon-mediated superconductivity in two-dimensional hydrogenated phosphorus carbide: HPC3[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2022,24. |
APA | Li, Ya-Ping.,Yang, Liu.,Liu, Hao-Dong.,Jiao, Na.,Ni, Mei-Yan.,...&Zhang, Ping.(2022).Phonon-mediated superconductivity in two-dimensional hydrogenated phosphorus carbide: HPC3.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,24. |
MLA | Li, Ya-Ping,et al."Phonon-mediated superconductivity in two-dimensional hydrogenated phosphorus carbide: HPC3".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 24(2022). |
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