Dielectric property of single crystalline BaTi2O5 prepared by a floating zone method

• Akashi Takaya

  Institute for Materials Research, Tohoku University

• Iwata Hiroaki

  Institute for Materials Research, Tohoku University

• Goto Takashi

  Institute for Materials Research, Tohoku University

書誌事項

タイトル別名

• Dielectric Property of Single Crystalline BaTi<SUB>2</SUB>O<SUB>5</SUB> Prepared by a Floating Zone Method

抄録

Single crystalline BaTi₂O₅ was prepared by a floating zone method. The permittivity of single crystalline BaTi₂O₅ perpendicular to a (010) plane showed the maximum value of 20500 at 748 K obeying the Curie-Weiss law at higher temperatures. The permittivity perpendicular to (100) and (001) planes were 140 and 70, respectively almost independent of temperature. A transition temperature measured by a dilatometer was in agreement with a Curie temperature. The relationship between polarization and electrical field perpendicular to the (010) plane showed ferroelectric hysteresis. No hysteresis was observed in the direction perpendicular to (100) and (001) planes. The electrical conductivity perpendicular to the (010) was larger than those of (100) and (001) planes. The activation energy of electrical conductivity was 147 to 180 kJ mol⁻¹ independent of directions.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 44 (8), 1644-1646, 2003

  公益社団法人 日本金属学会

キーワード

• BaTi<SUB>2</SUB>O<SUB>5</SUB> single crystal
• anisotropy
• permittivity
• hysteresis
• electrical conductivity
• thermal expansion

詳細情報

• CRID: 1390282679222768768
• NII論文ID: 130004452233
• NII論文ID: 10011914232
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.44.1644
• COI: 1:CAS:528:DC%2BD3sXnsFylurg%3D
• ISSN: 13475320
• ISSN: 13459678
• HANDLE: 10097/52319
• NDL書誌ID: 6652738
• Web Site: https://tohoku.repo.nii.ac.jp/records/44247
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6652738
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/44/8/44_8_1644/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可