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The influence of imperfection of the crystal lattice on the electrokinetic and magnetic properties of disordered titanium monoxide

  • Semiconductors and Dielectrics
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Abstract

The conductivity and magnetic susceptibility of disordered titanium monoxide TiOy (0.920≤y≤1.262) containing vacancies in titanium and oxygen sublattices are investigated. For TiOy monoxides with an oxygen content y≤1.069, the temperature dependences of the conductivity are described by the Bloch-Grüneisen function at a Debye temperature ranging from 400 to 480 K and the temperature dependences of the magnetic susceptibility are characterized by the contribution from the Pauli paramagnetism due to conduction electrons. The behavior of the conductivity and magnetic susceptibility of TiOy monoxides with an oxygen content y≥1.087 is characteristic of narrow-gap semiconductors with nondegenerate charge carriers governed by the Boltzmann statistics. The band gap ΔE between the valence and conduction bands of TiOy monoxides with y≥1.087 falls in the range 0.06–0.17 eV.

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Authors and Affiliations

  1. Institute of Solid-State Chemistry, Ural Division, Russian Academy of Sciences, ul. Pervomaiskaya 91, Yekaterinburg, 620219, Russia

    A. I. Gusev & A. A. Valeeva

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  1. A. I. Gusev
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  2. A. A. Valeeva
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__________

Translated from Fizika Tverdogo Tela, Vol. 45, No. 7, 2003, pp. 1185–1192.

Original Russian Text Copyright © 2003 by Gusev, Valeeva.

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Gusev, A.I., Valeeva, A.A. The influence of imperfection of the crystal lattice on the electrokinetic and magnetic properties of disordered titanium monoxide. Phys. Solid State 45, 1242–1250 (2003). https://doi.org/10.1134/1.1594236

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  • DOI: https://doi.org/10.1134/1.1594236

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