Abstract
Electrical properties of single-crystalline BaTi2O5, prepared by a floating zone method, were examined by AC impedance spectroscopy at frequencies of 10−2 to 106 Hz at temperatures of 425–970 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).
Original language | English |
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Pages (from-to) | 75-80 |
Number of pages | 6 |
Journal | Materials Chemistry and Physics |
Volume | 186 |
DOIs | |
Publication status | Published - 2017 Jan 15 |
Keywords
- Ferroelectricity
- Impedance
- Ionic conductivity
- Single crystalline BaTiO
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics