Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5448468 | Materials Chemistry and Physics | 2017 | 6 Pages |
Abstract
Electrical properties of single-crystalline BaTi2O5, prepared by a floating zone method, were examined by AC impedance spectroscopy at frequencies of 10â2 to 106Â Hz at temperatures of 425-970Â K. Complex impedance in a direction perpendicular to (001) was exhibited by a single resistor (R)-capacitor (C) parallel circuit. In the direction perpendicular to (010), four R-C parallel circuits were involved: two R-C circuits were associated with a strong temperature-dependent ferroelectric response and a slightly temperature-dependent paraelectric response, while the other two R-C circuits corresponded to the interface phenomena associated with ionic conduction. The electrical conductivity in the direction perpendicular to (010) was one-to-three orders of magnitude higher than that in the direction perpendicular to (001).
Related Topics
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Authors
Hirokazu Katsui, Keiji Shiga, Takashi Goto,