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 SM ISO690:2012GITSU, Dumitru, KONOPKO, Leonid, NIKOLAEVA, Albina, HUBER, Tito. Pressure-dependent thermopower of individual Bi nanowires. In: Applied Physics Letters, 2005, vol. 86, pp. 1-3. ISSN 0003-6951. DOI: https://doi.org/10.1063/1.1873045 |
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  Applied Physics Letters |
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| Volumul 86 / 2005 / ISSN 0003-6951 /ISSNe 1077-3118 | ||||||
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| DOI:https://doi.org/10.1063/1.1873045 | ||||||
| Pag. 1-3 | ||||||
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The 240-620 nm diameter nanowires were freely suspended and thermopower measurements were carried out over the temperature range 4-300 K and for stresses as high as 1 GPa. The peaks of up to 80 μVK that are observed around 40 K are interpreted in terms of a model of diffusion thermopower under strong electron and hole-boundary scattering. The partial Seebeck coefficients are calculated from the stress-dependent carrier Fermi energies obtained from magnetoresistance measurements. The prospect of Bi nanowire arrays achieving high thermoelectric figure of merit is discussed. |
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| Cuvinte-cheie diffusion, Electric power measurement, Electron scattering, Fermi level, Magnetic variables measurement, Magnetoresistance, Nanostructured materials, Pressure effects, scanning electron microscopy, Thermal effects |
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