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This article is cited in 1 scientific paper (total in 1 paper)
Phase transitions
Metal–insulator phase transition in thin films of a nickel-doped vanadium dioxide
V. N. Andreev, V. A. Klimov Ioffe Institute, St. Petersburg
Abstract:
The electrical conductivity of thin polycrystalline VNi$_{x}$O$_{2}$ films has been studied in a wide range of temperatures, which covers the regions of both metallic and insulator phase. It is shown that the metal–insulator phase transition temperature decreases as the nickel concentration increases, and the temperature range of coexistence of the phases increases monotonically. The temperature dependence of the conductivity of the insulating VNi$_{x}$O$_{2}$ phase is explained using the hopping conduction model that takes into account the influence of thermal atomic vibrations on the resonance integral. Parameter $\epsilon$ has been calculated as a function of the doping level of VO$_2$.
Keywords:
phase transition, electrical conductivity, doping, polaron.
Received: 24.05.2019 Revised: 24.05.2019 Accepted: 27.05.2019
Citation:
V. N. Andreev, V. A. Klimov, “Metal–insulator phase transition in thin films of a nickel-doped vanadium dioxide”, Fizika Tverdogo Tela, 61:10 (2019), 1935–1939; Phys. Solid State, 61:10 (2019), 1891–1895
Linking options:
https://www.mathnet.ru/eng/ftt8678 https://www.mathnet.ru/eng/ftt/v61/i10/p1935
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