Dielectric properties of single crystalline Ba(Ti0.99Zr0.01)2O5 prepared by the floating zone method

Keiji Shiga, Hirokazu Katsui, Takashi Goto

Research output: Contribution to journalArticlepeer-review

Abstract

Zr4+-substituted single crystalline BaTi2O5 (Ba(Ti0.99Zr0.01)2O5) was prepared by the floating zone method, and its dielectric properties were investigated. The growth direction of Ba(Ti0.99Zr0.01)2O5 was parallel to the b axis. The Curie temperature of Ba(Ti0.99Zr0.01)2O5 was 710 K, which was 42 K lower than that of BaTi2O5. The complex impedance plane plot of BaTi2O5 in the b direction showed a semicircle associated with ferroelectric response and a spike associated with ionic conduction at 623 K. On the other hand, the complex impedance plot of Ba(Ti0.99Zr0.01)2O5 showed a single semicircle, suggesting almost no ionic conduction. The electrical conductivity of Ba(Ti0.99Zr0.01)2O5 was approximately half of that of BaTi2O5.

Original languageEnglish
Pages (from-to)11457-11460
Number of pages4
JournalMaterials Today: Proceedings
Volume4
Issue number11
DOIs
Publication statusPublished - 2017

Keywords

  • BaTiO
  • Ferroelectric material
  • Impedance Floating zone method
  • Single crystal

ASJC Scopus subject areas

  • Materials Science(all)

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