Dielectric properties of poly- and single-crystalline Ba 1-xSrxTi2O5

Xinyan Yue, Rong Tu, Takashi Goto

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Poly- and single-crystalline SrO substituted BaTi2O5 (Ba1-xSrxTi2O5) were prepared by arc-melting and floating-zone (FZ) melting, respectively. Both showed a strong b-axis orientation and had maximum permittivity (εmax) at 1 mol% SrO substitution. The εmax values of poly- and single-crystalline Ba0.99Sr0.01Ti2O5 were 3300 and 42190, respectively. The Curie temperatures (Tc) of poly- and single-crystalline Ba1-xSrxTi2O 5 at x = 0.03 were 748 and 742 K, respectively. The electrical conductivity (σ) of single-crystalline Ba1-xSr xTi2O5 was higher than that of poly-crystalline Ba1-xSrxTi2O5. Larger size of single-crystalline Ba1-xSrxTi2O5 specimen than that of BaTi2O5 was obtained.

Original languageEnglish
Pages (from-to)984-989
Number of pages6
JournalMaterials Transactions
Volume48
Issue number5
DOIs
Publication statusPublished - 2007 May

Keywords

  • Ac impedance spectroscopy
  • Arc-melting
  • BaSrTiO
  • Floating-zone (FZ) melting
  • Poly-crystal
  • Single-crystal

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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