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Structure, magnetic, and electrical properties of bismuth niobates doped with d-elements: VIII. Phase transitions and electrophysical properties of bismuth niobate

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Abstract

Reversible phase transitions of bismuth niobate Bi3NbO7 have been observed: from the lowtemperature cubic modification to the tetragonal one at 860°C and from the tetragonal modification to the hightemperature cubic one at 950–980°C. With increasing temperature of the cubic modification preparation, the unit cell parameter has been decreasing. Electrophysical properties of the cubic phases have matched at the frequencies below 1 kHz (up to 650 K). The specific conductivity of the tetragonal phase exceeds that of the cubic phase by no more than an order of magnitude (below 1000 K).

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Authors and Affiliations

  1. Syktyvkar State University, Oktyabr’skii pr. 55, Syktyvkar, 167001, Russia

    N. A. Zhuk & N. V. Rozhkina

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  1. N. A. Zhuk
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  2. N. V. Rozhkina
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Correspondence to N. A. Zhuk.

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Original Russian Text © N.A. Zhuk, N.V. Rozhkina, 2014, published in Zhurnal Obshchei Khimii, 2014, Vol. 84, No. 1, pp. 3–7.

For communication VII, see [1].

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Zhuk, N.A., Rozhkina, N.V. Structure, magnetic, and electrical properties of bismuth niobates doped with d-elements: VIII. Phase transitions and electrophysical properties of bismuth niobate. Russ J Gen Chem 84, 1–5 (2014). https://doi.org/10.1134/S1070363214010010

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  • DOI: https://doi.org/10.1134/S1070363214010010

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