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SM ISO690:2012 KONDRYA, Elena. Quantum oscillations of conductivity in bismuth wires. In: Nanotechnologies and Biomedical Engineering, Ed. 1, 7-8 iulie 2011, Chișinău. Technical University of Moldova, 2011, Editia 1, pp. 104-107. ISBN 978-9975-66-239-0.. |
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Nanotechnologies and Biomedical Engineering Editia 1, 2011 |
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Conferința "International Conference on Nanotechnologies and Biomedical Engineering" 1, Chișinău, Moldova, 7-8 iulie 2011 | ||||||
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Pag. 104-107 | ||||||
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Measurements of the resistance of bismuth nanowires with several diameters and different quality reveal oscillations on the dependence of resistance under uniaxial strain at T = 4.2 K. Amplitude of oscillations is significant (38 %) at helium temperature and becomes smearing at T = 77 K. Observed oscillations originate from quantum size effect. A simple evaluation of period of oscillations allows us to identify the groups of carriers involved in transport. Calculated periods of 42.2 and 25.9 nm satisfy approximatively the ratio 2:1 for two experimentally observed sets of oscillations from light and heavy electrons. |
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Cuvinte-cheie nanowires, quantum size effect |
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