Crystal Growth of the Relaxor typed Ferroelectrics single crystal and Observation of the multi-ferroelectric domains

弛豫型铁电体单晶的晶体生长及多铁电畴的观察

• 批准号: 20560633
• 负责人: FUJITA Kazuhiko
• 金额: $ 2.83万
• 依托单位: Gifu National College of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20560633/
• 关键词: リラクサー; 強誘電体; 圧電体; ドメイン構造; マルチドメイン; 固溶体

Lead-based relaxor ferroelectric single crystal solid solutions, such as a Pb(Zn_<1/3>Nb_<2/3>)O_3 -PbTiO_3 binary system, with compositions near the morphotropic phase boundary(MPB) have attracted considerable attention for several applications in higher-performance actuators, and ultrasonic devices, making use of their superior piezoelectric properties. From the view of the environmental protection, We have selected the lead-free ferroelectric sodium bismuth titanate (Na_<1/2>Bi_<1/2>)TiO_3-BaTiO_3 (NBT-BT) which has very excellent electromechanical properties, and trid to grow the solid solution single crystals of NBT-BT by the Bridgman methods. The domain observation of NBT-BT by using the polarizing microscope, nano-domain observation and piezoresponse in nanoscale regions by using piezoresponse force microscopy (PFM), measurement of dielectric permittivity, P-E hysteresis measurement with improved Sawyer-Tower circuit, were extensively investigated for NBT-BT relaxor ferroelectrics.

Lead-based relaxor ferroelectric single crystal solid solutions, such as a Pb(Zn_<1/3>Nb_<2/3>)O_3 -PbTiO_3 binary system, with compositions near the morphotropic phase boundary(MPB) have attracted considerable attention for several applications in higher-performance actuators, and ultrasonic devices, making use of their superior piezoelectric properties.从环境保护的角度来看，我们选择了无铅铁电二氮二氢钠（Na__ <1/2> BI__ <1/2>）TIO_3-BATIO_3（NBT-BT），它具有非常出色的机电特性，并且可以通过Bridgman Metss来生长NBT-BT的实心溶液单晶。通过使用极化显微镜，纳米域观察和纳米级区域中的纳米障碍观察和压电响应，通过使用压电响应力显微镜（PFM），介电介电常数的测量，P-e的滞后测量值通过改进的锯齿状电路进行了nbt-bt观察。

项目成果

MPB近傍のリラクサ強誘電体固溶体に於けるナノ・ツインドメインと圧力効果

MPB 附近弛豫铁电固溶体中的纳米孪晶域和压力效应

• 发表时间: 2008
• 作者: 安田直彦

リラクサ強誘電体固溶体24PIN-46 PMN-30PTの分域階層構造

弛豫铁电固溶体24PIN-46 PMN-30PT的畴分级结构

• 发表时间: 2011
• 作者: 安田直彦;不破知裕;大和英弘;舘義仁;山下洋八;藤田一彦;岩田真;寺内暉;石橋善弘
• 通讯作者: 石橋善弘

ブリッジマン法で育成された非鉛系リラクサ(Na_<1/2>Bi_<1/2>)TiO_3 (NBT)-BaTiO_3(BT)単結晶の電気的特性

布里奇曼法生长无铅弛豫剂(Na_<1/2>Bi_<1/2>)TiO_3(NBT)-BaTiO_3(BT)单晶的电学性能

• 发表时间: 2009
• 作者: 安田直彦;橋本慎司;大和英弘;櫻田修;藤田一彦;山下洋八;岩田真;石橋善弘;高橋雅也・谷淳一・木戸博康;高橋雅也・谷淳一・木戸博康・林晃敏・忠永・辰巳砂昌弘;安田直彦
• 通讯作者: 安田直彦

The effect of Pressure on the Poling Condition in the Lead-based Relaxor Ferroelectrics Solid Solutions

压力对铅基驰豫铁电体固溶体极化条件的影响

• 发表时间: 2011
• 期刊: Journal of the Korean Physical Society Vol.58(in press)
• 作者: Naohiko Yasuda;Naoki Miyazono;Hidehiro Ohwa;Yoshihito Tachi;Yohachi Yamashita;Kazuhiko Fujita;Makoto Iwata;Yoshihiro Ishibashi
• 通讯作者: Yoshihiro Ishibashi

Domain switching in nanometer scale in Bismuth-based relaxor solid solution

铋基弛豫固溶体中纳米尺度的畴切换

• 发表时间: 2011
• 期刊: Journal of Physics : Conference Series (in press)
• 作者: Naohiko Yasuda;Natsumi Takahashi;NurHidayah;Hidehiro Ohwa;Osamu Sakurada;Yoshihirto Tachi;Kazuhiko Fujita;Yohachi Yamashita;Makoto Iwata;Hikaru Terauchi;Yoshihiro Ishibashi
• 通讯作者: Yoshihiro Ishibashi