中文版 | English
Title

Spectroscopic signature of obstructed surface states in SrIn2P2

Author
Corresponding AuthorLiu,Qihang; Zhao,Yue; Liu,Chang
Publication Years
2023-12-01
DOI
Source Title
EISSN
2041-1723
Volume14Issue:1
Abstract
The century-long development of surface sciences has witnessed the discoveries of a variety of quantum states. In the recently proposed “obstructed atomic insulators”, symmetric charges are pinned at virtual sites where no real atoms reside. The cleavage through these sites could lead to a set of obstructed surface states with partial electronic occupation. Here, utilizing scanning tunneling microscopy, angle-resolved photoemission spectroscopy and first-principles calculations, we observe spectroscopic signature of obstructed surface states in SrInP. We find that a pair of surface states that are originated from the pristine obstructed surface states split in energy by a unique surface reconstruction. The upper branch is marked with a striking differential conductance peak followed by negative differential conductance, signaling its localized nature, while the lower branch is found to be highly dispersive. This pair of surface states is in consistency with our calculational results. Our finding not only demonstrates a surface quantum state induced by a new type of bulk-boundary correspondence, but also provides a platform for exploring efficient catalysts and related surface engineering.
URL[Source Record]
Indexed By
Language
English
Important Publications
NI Journal Papers ; NI论文
SUSTech Authorship
First ; Corresponding
Funding Project
National Natural Science Foundation of China-Yunnan Joint Fund[12074161];
WOS Research Area
Science & Technology - Other Topics
WOS Subject
Multidisciplinary Sciences
WOS Accession No
WOS:001024186000027
Publisher
Scopus EID
2-s2.0-85159806913
Data Source
Scopus
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/536361
DepartmentDepartment of Physics
量子科学与工程研究院
Affiliation
1.Shenzhen Institute for Quantum Science and Engineering (SIQSE) and Department of Physics,Southern University of Science and Technology (SUSTech),Shenzhen,Guangdong,518055,China
2.International Quantum Academy,Shenzhen,Guangdong,518048,China
3.State Key Laboratory of Functional Materials for Informatics,Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences,Shanghai,200050,China
4.Department of Physics,Princeton University,Princeton,08544,United States
5.Guangdong Provincial Key Laboratory of Computational Science and Material Design,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
First Author AffilicationDepartment of Physics;  Institute for Quantum Science and Engineering
Corresponding Author AffilicationDepartment of Physics;  Institute for Quantum Science and Engineering;  Southern University of Science and Technology
First Author's First AffilicationDepartment of Physics;  Institute for Quantum Science and Engineering
Recommended Citation
GB/T 7714
Liu,Xiang Rui,Deng,Hanbin,Liu,Yuntian,et al. Spectroscopic signature of obstructed surface states in SrIn2P2[J]. Nature Communications,2023,14(1).
APA
Liu,Xiang Rui.,Deng,Hanbin.,Liu,Yuntian.,Yin,Zhouyi.,Chen,Congrun.,...&Liu,Chang.(2023).Spectroscopic signature of obstructed surface states in SrIn2P2.Nature Communications,14(1).
MLA
Liu,Xiang Rui,et al."Spectroscopic signature of obstructed surface states in SrIn2P2".Nature Communications 14.1(2023).
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