Abstract
The results on the effect of strain on the electrical resistance and thermopower of Pyrex-coated Bi nanowires were presented. The properties of Bi nanowires are examined in the light of a strain induced electronic topological transition. At low temperatures, the thermopower dependences on strain exhibit a non-monotonic behavior inherent in thinner wires, where the thermopower is dominated by the diffusion transport mechanism of holes. The hole-dominated transport can be transformed into electrondominated transport through a smooth manipulation with the phonon spectrum and Fermi surface by applying a uniaxial strain. A fairly high value of the thermoelectric power factor was found above T = 80 K, where the dominant mechanism contributing to the thermopower is diffusive thermoelectric generation with electrons as the majority carrier.
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© 2016 Springer Science+Business Media Singapore
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Condrea, E., Nicorici, A., Gilewski, A. (2016). Peculiarities of Seebeck Effect in Strained Bismuth Nanowires. In: Sontea, V., Tiginyanu, I. (eds) 3rd International Conference on Nanotechnologies and Biomedical Engineering. IFMBE Proceedings, vol 55. Springer, Singapore. https://doi.org/10.1007/978-981-287-736-9_12
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DOI: https://doi.org/10.1007/978-981-287-736-9_12
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Publisher Name: Springer, Singapore
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Online ISBN: 978-981-287-736-9
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