Dielectric and Impedance Spectroscopy of BaSnO₃ and Ba₂SnO₄

R. M. KatiliuteFaculty of Physics, Vilnius University, Sauletekio str. 9 III 817, LT-10222, Vilnius, Lithuania

P. SeibutasFaculty of Physics, Vilnius University, Sauletekio str. 9 III 817, LT-10222, Vilnius, Lithuania

M. IvanovFaculty of Physics, Vilnius University, Sauletekio str. 9 III 817, LT-10222, Vilnius, LithuaniaCorrespondence[email protected]

R. GrigalaitisFaculty of Physics, Vilnius University, Sauletekio str. 9 III 817, LT-10222, Vilnius, Lithuania

A. StanulisDepartment of General and Inorganic Chemistry, Vilnius University, Naugarduko str. 24, LT-03225, Vilnius, Lithuania

J. BanysFaculty of Physics, Vilnius University, Sauletekio str. 9 III 817, LT-10222, Vilnius, Lithuania

A. KareivaDepartment of General and Inorganic Chemistry, Vilnius University, Naugarduko str. 24, LT-03225, Vilnius, Lithuania

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Abstract

Dielectric and impedance spectroscopy studies of barium stannate (BaSnO₃) and barium orthostannate (Ba₂SnO₄) nano-grained ceramics were performed in 300–1000 K temperature and 20 Hz–1 MHz frequency ranges. No dielectric anomalies were observed. Both materials are sensitive to humidity of air. Conductivity is dominated by electronic conductivity at low temperatures, but above 700 K it could be either intrinsic electronic conductivity or ionic one.

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Dielectric and Impedance Spectroscopy of BaSnO₃ and Ba₂SnO₄

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Dielectric and Impedance Spectroscopy of BaSnO₃ and Ba₂SnO₄