The quantum oscillations in different probe configurations in the $$\hbox {BiSbTe}_{{3}}$$ BiSbTe 3 topological insulator macroflake

Autor: Shiu-Ming Huang, Chien Lin, Sheng-Yu You, You-Jhih Yan, Shih-Hsun Yu, Mitch Chou
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Scientific Reports, Vol 12, Iss 1, Pp 1-6 (2022)
Druh dokumentu: article
ISSN: 2045-2322
DOI: 10.1038/s41598-022-09073-4
Popis: Abstract We demonstrate quantum oscillations in $$\hbox {BiSbTe}_{{3}}$$ BiSbTe 3 topological insulator macroflakes in different probe configurations. The oscillation period in the local configuration is twice compared to the non-local configuration. The Aharonov–Bohm-like (AB-like) oscillation dominates the transport property in the local configuration and the Altshuler–Aronov–Spivak-like (AAS-like) oscillation dominates the transport property in the non-local configuration. The AB-like oscillation period is 0.21 T and the related loop diameter is 156 nm which is consistent with the reported phase coherence length in topological insulators. The Shubnikov–de Haas oscillation frequency is the same but oscillation peaks reveal a $$\pi$$ π phase shift in the local and non-local configuration. The Berry phase is $$\pi$$ π in the local configuration and 0 in non-local configuration.
Databáze: Directory of Open Access Journals
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