中文版 | English
Title

Strain-induced pseudo magnetic field in the α-T3 lattice

Author
Publication Years
2022-10-15
DOI
Source Title
ISSN
2469-9950
EISSN
2469-9969
Volume106Issue:15
Abstract

We investigate the effects of nonuniform uniaxial strain and triaxial strain on the α-T3 lattice. The analytical expressions of the pseudo-Landau levels (pLLs) are derived based on low-energy Hamiltonians, and are verified by tight-binding calculations. We find that the pseudo magnetic field leads to oscillating density of states, and the first pLL is sublattice polarized, which is distributed on only two of the three sets of sublattices. For nonuniform uniaxial strain, we show that pLLs become dispersive due to renormalization of the Fermi velocity, and a valley polarized current emerges. Our results generalize the study of pseudo magnetic fields to the α-T3 lattice, which will not only deepen the understanding of the intriguing effects of mechanical strains but also provide a theoretical foundation for possible experimental studies of the effects of strain on the α-T3 lattice.

URL[Source Record]
Indexed By
SCI ; EI
Language
English
Important Publications
NI Journal Papers
SUSTech Authorship
Others
ESI Research Field
PHYSICS
Citation statistics
Cited Times [WOS]:4
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/407109
DepartmentDepartment of Physics
量子科学与工程研究院
Affiliation
1.School of Physics,Beihang University,Beijing,100191,China
2.Institute for Quantum Science and Engineering,Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China
Recommended Citation
GB/T 7714
Sun,Junsong,Liu,Tianyu,Du,Yi,et al. Strain-induced pseudo magnetic field in the α-T3 lattice[J]. Physical Review B,2022,106(15).
APA
Sun,Junsong,Liu,Tianyu,Du,Yi,&Guo,Huaiming.(2022).Strain-induced pseudo magnetic field in the α-T3 lattice.Physical Review B,106(15).
MLA
Sun,Junsong,et al."Strain-induced pseudo magnetic field in the α-T3 lattice".Physical Review B 106.15(2022).
Files in This Item:
File Name/Size DocType Version Access License
PhysRevB.106.155417.(1950KB) Restricted Access--
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