Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
145 0 |
Căutarea după subiecte similare conform CZU |
621.382 (52) |
Electrotehnică (1161) |
SM ISO690:2012 GITSU, Dumitru, HUBER, Tito, KONOPKO, Leonid, NIKOLAEVA, Albina. Aharonov-Bohm oscillations in single crystal Bi nanowires. In: Journal of Nanoelectronics and Optoelectronics, 2009, vol. 4, pp. 124-133. ISSN 1555-130X. DOI: https://doi.org/10.1166/jno.2009.1011 |
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Journal of Nanoelectronics and Optoelectronics | |
Volumul 4 / 2009 / ISSN 1555-130X | |
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DOI:https://doi.org/10.1166/jno.2009.1011 | |
CZU: 621.382 | |
Pag. 124-133 | |
Rezumat | |
The Aharonov-Bohm effect (AB) exists in cylindrical wires as the magnetoresistance (MR) oscillations with a period ΔS that is proportional to Φ 0/S, where Φ 0 = h/e is the flux quantum and S is the wire cross section. The AB-type longitudinal MR oscillations "flux quantization" type with period ΔS = Φ 0/S caused by electrons undergoing continuous grazing incidence at the wire wall have been studied previously at 4.2 K in single bismuth nanowires with diameter 0.2 < d < 0.8 μm. Recently the new type of AB oscillations with period ΔB = h/e and ΔB = h/2e on single Bi nanowires with diameter d = 45-73 nm have been observed. The single nanowire samples were prepared by improved Ulitovsky technique and represented cylindrical single crystals with (1011) orientation along the wire axis. Here we present a review of experimental investigations of size-effect oscillations, equidistant in the direct magnetic field of the magnetoresistance of Bi thin cylindrical single crystals obtained by Ulitovsky technique with diameter 45 nm < d < 800 nm |
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Cuvinte-cheie Aharonov-Bohm oscillations, Berry phase, Bismuth, Magnetoresistanse, Nanowire, Semimetal-to-semoconductor transformations, Surface states |
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