Observation of Landau Level-Dependent Aharonov-Bohm-Like Oscillations in a Topological Insulator
| Autor: | Jai-Long Hong, C. P. Lin, You-Jhih Yan, Shih-Hsun Yu, Mitch M.C. Chou, Jyun-Fong Wong, Sheng-Yu You, Pin-Cyuan Chen, Shiu-Ming Huang |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Nano Express Condensed matter physics Oscillation Landau level Aharonov-Bohm-like oscillations Shubnikov-de Haas oscillation Quantum oscillations 02 engineering and technology Landau quantization Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Effective mass (solid-state physics) Topological insulator lcsh:TA401-492 lcsh:Materials of engineering and construction. Mechanics of materials Condensed Matter::Strongly Correlated Electrons General Materials Science 0210 nano-technology |
| Zdroj: | Nanoscale Research Letters, Vol 15, Iss 1, Pp 1-6 (2020) Nanoscale Research Letters |
| ISSN: | 1556-276X |
| DOI: | 10.1186/s11671-020-03389-8 |
| Popis: | We study the quantum oscillations in the BiSbTe3 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. |
| Databáze: | OpenAIRE |
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