Ferroelectric, Piezoelectric and Pyroelectric Properties of Sr_<1+x>Bi_<4-x>Ti_<4-x>Ta_xO_<15> Ceramics (x = 0-1)

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概要

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• The dielectric, ferroelectric, piezoelectric and pyroelectric properties of bismuth layer-structured ferroelectric (BLSF) Sr_<1+x>Bi_<4-x>Ti_<4-x>Ta_xO_<15> (x = 0-1) ceramics were investigated. The Curie temperature of this system is from 540℃ to 30℃, and all samples show ferroelectricity at room temperature. From piezoelectric measurements, Sr_<1.1>Bi_<3.9>Ti_<3.9>Ta_<0.1>O_<15> was found to have the largest piezoelectric coefficient and electromechanical coupling factor of compounds in this system. The thermally stimulated current measurements showed that Sr_<1.1>Bi_<3.9>Ti_<3.9>Ta_<0.1>O_<15> also has excellent pyroelectric responses, and the enhancement of pyroelectric properties may partially result from a relatively large temperature-dependent internal electric field which was observed from the polarization-electric field (P-E) hysteresis loops. [DOI: 10.1143/JJAP.41.1455]

• 社団法人応用物理学会の論文
• 2002-03-15

著者

• Wang Chunlei

  Department Of Physics Shandong University

• Wang Chunlei

  Department Of Electrical Engineering Graduate School Of Engineering Osaka University

• ZHAO Minglei

  Department of Physics, Shandong University

• ZHONG Weilie

  Department of Physics, Shandong University

• WANG Jinfeng

  Department of Physics, Shandong University

• CHEN Hongcun

  Department of Physics, Shandong University

• Zhao Minglei

  Department Of Physics Shandong University

• Chen Hongcun

  Department Of Physics Shandong University

• Wang Jinfeng

  Department Of Physics Shandong University

• Zhong Weilie

  Department Of Physics Shandong University

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