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Observation of pseudogap in SnSe(2)atomic layers grown on graphite | |
Mao, Ya-Hui1,2; Shan, Huan1,2; Wu, Jin-Rong1,2; Li, Ze-Jun1,2; Wu, Chang-Zheng1,2; Zhai, Xiao-Fang1,2,3; Zhao, Ai-Di1,2,3; Wang, Bing1,2 | |
2020-07-21 | |
发表期刊 | FRONTIERS OF PHYSICS |
ISSN | 2095-0462 |
EISSN | 2095-0470 |
卷号 | 15期号:4 |
发表状态 | 已发表 |
DOI | 10.1007/s11467-020-0977-1 |
摘要 | Superconducting metal dichalcogenides (MDCs) present several similarities to the other layered superconductors like cuprates. The superconductivity in atomically thin MDCs has been demonstrated by recent experiments, however, the investigation of the superconductivity intertwined with other orders are scarce. Investigating the pseudogap in atomic layers of MDCs may help to understand the superconducting mechanism for these true two-dimensional (2D) superconducting systems. Herein we report a pseudogap opening in the tunneling spectra of thin layers of SnSe(2)epitaxially grown on highly oriented pyrolytic graphite (HOPG) with scanning tunneling microscopy/spectroscopy (STM/STS). A significant V-shaped pseudogap was observed to open near the Fermi level (E-F) in the STS. And at elevated temperatures, the gap gradually evolves to a shallow dip. Our experimental observations provide direct evidence of a pseudogap state in the electron-doped SnSe(2)atomic layers on the HOPG surface, which may stimulate further exploration of the mechanism of superconductivity at 2D limit in MDCs. |
关键词 | scanning tunneling microscopy pseudogap metal dichalcogenides SnSe2 van der Waals epitaxy |
URL | 查看原文 |
收录类别 | SCI ; SCIE |
语种 | 英语 |
资助项目 | National Key R&D Program of China[2016YFA0200603][2017YFA0205004] ; "Strategic Priority Research Program" of CAS[XDB01020100] ; National Natural Science Foundation of China[91321309][21421063][21473174] ; Fundamental Research Funds for the Central Science Advances Universities[WK2060190027][WK2060190084] ; Youth Innovation Promotion Association of CAS[2011322] |
WOS研究方向 | Physics |
WOS类目 | Physics, Multidisciplinary |
WOS记录号 | WOS:000553578900001 |
出版者 | HIGHER EDUCATION PRESS |
WOS关键词 | CHARGE-DENSITY-WAVE ; SCANNING TUNNELING SPECTROSCOPY ; SUPERCONDUCTIVITY ; TRANSITION |
原始文献类型 | Article |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/122956 |
专题 | 物质科学与技术学院_PI研究组_翟晓芳组 物质科学与技术学院_PI研究组_赵爱迪组 |
通讯作者 | Zhao, Ai-Di |
作者单位 | 1.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China 2.Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Hefei 230026, Peoples R China 3.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China |
通讯作者单位 | 物质科学与技术学院 |
推荐引用方式 GB/T 7714 | Mao, Ya-Hui,Shan, Huan,Wu, Jin-Rong,et al. Observation of pseudogap in SnSe(2)atomic layers grown on graphite[J]. FRONTIERS OF PHYSICS,2020,15(4). |
APA | Mao, Ya-Hui.,Shan, Huan.,Wu, Jin-Rong.,Li, Ze-Jun.,Wu, Chang-Zheng.,...&Wang, Bing.(2020).Observation of pseudogap in SnSe(2)atomic layers grown on graphite.FRONTIERS OF PHYSICS,15(4). |
MLA | Mao, Ya-Hui,et al."Observation of pseudogap in SnSe(2)atomic layers grown on graphite".FRONTIERS OF PHYSICS 15.4(2020). |
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