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Quantum interference of surface states in nanowires of topological insulator BI0.83SB0.17

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dc.contributor.author KONOPKO, L. A.
dc.contributor.author NIKOLAEVA, A. A.
dc.contributor.author HUBER, T. E.
dc.contributor.author ROGACKI, K.
dc.date.accessioned 2020-05-05T10:02:39Z
dc.date.available 2020-05-05T10:02:39Z
dc.date.issued 2018
dc.identifier.citation KONOPKO L. A., NIKOLAEVA A. A. HUBER T. E. et al. Quantum interference of surface states in nanowires of topological insulator BI0.83SB0.17. In: Telecomunicaţii, Electronică şi Informatică: proc. of the 6th intern. conf., May 24-27, 2018. Chişinău, 2018, pp. 213-214. ISBN 978-9975-45-540-4. en_US
dc.identifier.isbn 978-9975-45-540-4
dc.identifier.uri http://repository.utm.md/handle/5014/8074
dc.description.abstract We have investigated the galvanomagnetic properties of topological insulator based on single-crystal Bi0.83Sb0.17 nanowires. The single-crystal nanowire samples in the diameter range 75 nm – 1.1 μm were prepared by the high frequency liquid phase casting in a glass capillary using an improved Ulitovsky technique; they were cylindrical singlecrystals with (1011) orientation along the wire axis. The samples resistance increases with decreasing temperature, but at low temperatures decrease in the resistance is observed. This effect is a clear manifestation of the presence on the surface of topological insulators highly conductive zone. We have investigated magnetoresistance of Bi0.83Sb0.17 nanowires at various magnetic field orientations. The oscillations of longitudinal magnetoresistance (MR) of 75 and 100-nm Bi0.83Sb0.17 nanowires with two periods ΔB1 and ΔB2 proportional to Φ0 and Φ0/2 were observed, where Φ0 = h/e is the flux quantum. In the range 0 – 60 degrees of inclined angle of magnetic field, the observed angle variation of the periods is in agreement with the theoretical dependence ΔB(θ) = ΔB(0)/cosθ of the flux quantization oscillations. However, the equidistant oscillations of MR exist in transverse magnetic fields under certain rotation angles. The observed effects are discussed. en_US
dc.language.iso en en_US
dc.publisher Tehnica UTM en_US
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject topological insulators en_US
dc.subject insulators en_US
dc.subject nanowires en_US
dc.subject magnetoresistance en_US
dc.subject oscillations en_US
dc.title Quantum interference of surface states in nanowires of topological insulator BI0.83SB0.17 en_US
dc.type Article en_US


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