中文版 | English
Title

Altshuler-Aronov-Spivak interference of one-dimensional helical edge states in MoTe2

Author
Corresponding AuthorChen, Jing-Jing
Publication Years
2023-01-12
DOI
Source Title
ISSN
2469-9950
EISSN
2469-9969
Volume107Issue:4
Abstract

Recent theories predicted that 1T'-MoTe2 is a higher-order topological insulator (HOTI) exhibiting one-dimensional (1D) conducting edge states, and that Td-MoTe2 becomes a HOTI with broken inversion symmetry under strain or lattice distortion. Here, we report the transport evidence for 1D helical edge states in MoTe2 thin flakes. Under an in-plane magnetic field perpendicular to the current, Altshuler-Aronov-Spivak interference of edge states is observed, in which the oscillating period corresponding to magnetic flux h/2e agrees with the lateral cross-sectional area. The absence of Aharonov-Bohm interference stems from the helical nature of the edge states. Temperature evolution of the fast Fourier transform amplitude is further obtained, indicating the quasiballistic transport mode. Our work deepens the understanding of higher-order topological properties of MoTe2, paving the way for further topological electronics.

URL[Source Record]
Indexed By
Language
English
Important Publications
NI Journal Papers
SUSTech Authorship
Corresponding
Funding Project
National Key Re-search and Development Program of China[2018YFA0703703] ; National Natural Science Foun-dation of China[
WOS Research Area
Materials Science ; Physics
WOS Subject
Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS Accession No
WOS:000919771800003
Publisher
ESI Research Field
PHYSICS
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:1
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/479598
DepartmentInstitute for Quantum Science and Engineering
Affiliation
1.Peking Univ, State Key Lab Mesoscop Phys & Frontiers Sci Ctr Na, Sch Phys, Beijing 100871, Peoples R China
2.Southern Univ Sci & Technol, Shenzhen Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China
3.Int Quantum Acad, Shenzhen 518055, Peoples R China
4.Peking Univ, Sch Phys, Electron Microscopy Lab, Beijing 100871, Peoples R China
Corresponding Author AffilicationInstitute for Quantum Science and Engineering
Recommended Citation
GB/T 7714
Pan, Zhen-Cun,Chu, Chun-Guang,Chen, Jing-Jing,et al. Altshuler-Aronov-Spivak interference of one-dimensional helical edge states in MoTe2[J]. PHYSICAL REVIEW B,2023,107(4).
APA
Pan, Zhen-Cun.,Chu, Chun-Guang.,Chen, Jing-Jing.,Wang, An-Qi.,Tan, Zhen-Bing.,...&Liao, Zhi-Min.(2023).Altshuler-Aronov-Spivak interference of one-dimensional helical edge states in MoTe2.PHYSICAL REVIEW B,107(4).
MLA
Pan, Zhen-Cun,et al."Altshuler-Aronov-Spivak interference of one-dimensional helical edge states in MoTe2".PHYSICAL REVIEW B 107.4(2023).
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