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Information × Registration Number 2115U000767, Article popup.category Стаття Title popup.author popup.publication 01-01-2015 popup.source_user Сумський державний університет popup.source http://essuir.sumdu.edu.ua/handle/123456789/44493 popup.publisher Sumy State University Description 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. popup.nrat_date 2025-03-24 Close