Electrical conductivity and magnetic susceptibility of titanium monoxide |
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Authors: | A A Valeeva A A Rempel’ A I Gusev |
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Institution: | (1) Institute of Solid-State Chemistry, Ural Division, Russian Academy of Sciences, ul. Pervomaiskaya 91, Yekaterinburg, 620219, Russia |
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Abstract: | Conductivity and magnetic susceptibility of disordered cubic titanium monoxide TiOy(0.920≤y≤1.262) are studied. Temperature dependences of the conductivity of TiOy monoxides with y≤1.069 are described by the Bloch-Grüneisen function with Debye temperature 400–480 K, and temperature dependences of the susceptibility include Pauli paramagnetism of conduction electrons. The behavior of conductivity and susceptibility of TiOy with y≥1.087 is typical of semiconductors with nondegenerate charge carriers obeying Boltzmann statistics. The band gap ΔE between the valence and conduction bands of TiOy(y≥1.087) is 0.06–0.17 eV, and effective mass of charge carriers is equal to 7–14 electron masses. |
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