Abstract
Thin copper ferrite films were synthesized by solid-phase pyrolysis. The properties of the material obtained were studied in relation to the synthesis temperature. With an increase in the calcination temperature over 800°С, CuFe2O4 spinel films become single-phase with the tetragonal structure. The films obtained consist of nanocrystallites of 20–40 nm size depending on the treatment temperature. The film calcined at 800°С is characterized by the largest piezo response among the materials synthesized. The temperature dependence of the electrical resistance of the materials produced was studied; from resulting data, the activation energy of the electrical conductivity of the materials was calculated.
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Studies by scanning electron microscopy, atomic force microscopy, Kelvin probe force microscopy, and piezo response force microscopy were supported by the Ministry of Science and Higher Education of the Russian Federation, government assignment in the field of research N FENW-2022-0001.
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V.Yu. Popova and E.M. Bayan: synthesis of film materials and study of the phase composition; V.V. Petrov, I.A. Gulyaeva, and A.P. Ivanishcheva: study of the film surface by scanning electron microscopy, atomic force microscopy, Kelvin probe force microscopy, and piezo response force microscopy and electrophysical measurements; M.I. Tolstunov: thermal gravimetric and calorimetric analysis.
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Translated from Zhurnal Prikladnoi Khimii, No. 8, pp. 994–1000, August, 2022 https://doi.org/10.31857/S0044461822080059
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Popova, V.Y., Petrov, V.V., Gulyaeva, I.A. et al. Synthesis and Properties of Thin CuFe2O4 Films. Russ J Appl Chem 95, 1129–1135 (2022). https://doi.org/10.1134/S1070427222080067
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DOI: https://doi.org/10.1134/S1070427222080067