Observation of Landau Level-Dependent Aharonov-Bohm-Like Oscillations in a Topological Insulator

We study the quantum oscillations in the BiSbTe(3) topological insulator. In addition to the Shubnikov-de Haas (SdH) oscillation, the Aharonov-Bohm-like (ABL) oscillations are also observed. The ABL oscillation period is constant at each Landau level (LL) which is determined from the SdH oscillation...

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Detalles Bibliográficos
Autores principales: Huang, Shiu-Ming, Lin, Chien, You, Sheng-Yu, Chen, Pin-Cyuan, Hong, Jai-Long, Wong, Jyun-Fong, Yan, You-Jhih, Yu, Shih-Hsun, Chou, Mitch M. C.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2020
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7447688/
https://www.ncbi.nlm.nih.gov/pubmed/32844331
http://dx.doi.org/10.1186/s11671-020-03389-8
Descripción
Sumario:We study the quantum oscillations in the BiSbTe(3) topological insulator. In addition to the Shubnikov-de Haas (SdH) oscillation, the Aharonov-Bohm-like (ABL) oscillations are also observed. The ABL oscillation period is constant at each Landau level (LL) which is determined from the SdH oscillation. The shorter ABL oscillation periods are observed at lower LLs. The oscillation period is proportional to the square root of the LL at temperatures. The ratio of the ABL oscillation period to the effective mass is weak LL dependence. The LL-dependent ABL oscillation might originate from the LL-dependent effective mass.

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