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Title Hopping Conductivity and Negative Magnetoresistance of the Bulk Nanograined Bi2Te3 Material
Authors Ivanov, O.N.
Lyubushkin, R.A.
Yaprintsev, M.N.
Sudzhanskaya, I.V.
ORCID
Keywords Bulk nanograined materials
Hopping conductivity
Magnetoresistance
Type Article
Date of Issue 2015
URI http://essuir.sumdu.edu.ua/handle/123456789/44493
Publisher Sumy State University
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Citation O.N. Ivanov, R.A. Lyubushkin, M.N. Yaprintsev, J. Nano- Electron. Phys. 7 No 4, 04073 (2015)
Abstract The bulk nanograined Bi2Te3 material was prepared by the microwave assisted solvothermal method and cold isostatic pressure method. It was found that above T* ≈ 190 K the temperature dependence of the specific electrical resistivity of material is of metallic type, while below this temperature a semiconductor conductivity takes place. Within the temperature ΔT ≈ 90 K-35 K interval the electrical conductivity of material can be described by the variable-range hopping conductivity mechanism. Negative magnetoresistance was observed at the same temperature interval.
Appears in Collections: Журнал нано- та електронної фізики (Journal of nano- and electronic physics)

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