E. Hartmann: Electrical Conductivity of Bi<SUB>2</SUB>TeO<SUB>5</SUB> Single Crystals at High Temperatures

Crystal Research and Technology

Cryst. Res. Technol. 36 (2001) 911 - Abstract -

E. Hartmann

Research Institute for Solid State Physics and Optics of the Hungarian Academy of Sciences, Budapest, Hungary

Electrical Conductivity of Bi₂TeO₅ Single Crystals at High Temperatures

A systematic study of the electrical conductivity of Bi₂TeO₅ single crystals has been carried out within a wide range of temperature using impedance spectroscopy and dc measurement. The corresponding complex impedance and Arrhenius plots are given. It has been shown that the ambient atmosphere affects the electrical conductivity and there is a large anisotropy in the conduction.

Keywords: bismuth tellurite, electrical conductivity, photorefractive material, impedance spectroscopy

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