Structure Refinement, Dielectric and Ferroelectric Properties of Crystalline (BaxSr1-x)Bi2Ta2O9

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概要

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• We synthesized a series of (Ca,Ba)-layered compounds (BaxSr1-x)Bi2Ta2O9 ($x=0.0$, 0.2, 0.4, 0.6, 0.8, and 1.0) by a solid-state reaction, and examined the structures, and the dielectric and ferroelectric properties. Structural analysis by X-ray diffraction (XRD) revealed that the structures of (BaxSr1-x)Bi2Ta2O9 for $0.0\leq x\leq 0.4$ are orthorhombic with $A2_{1}am$ symmetry, whereas those of (BaxSr1-x)Bi2Ta2O9 for $0.6\leq x\leq 1.0$ are tetragonal ($I4/mmm$). The temperature dependence of $\varepsilon_{\text{r}}{}'$ and $\tan\delta$ were investigated in detail for various frequencies and compositions. We observed that the dielectric constant $\varepsilon_{\text{r}}{}'$, $\tan\delta$, $T_{\text{c}}$, and hysteresis loop were strongly influenced by from Sr2+ to Ba2+.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2007-03-15

著者

• Young San-lin

  Department Of Electrical Engineering Hsiuping Institute Of Technology

• Shi Jen-bin

  Department Of Electronic Engineering Feng Chia University

• Lin Jer-yan

  Department Of Statistical Fang Chia University

• Lin Jer-Yan

  Department of Statistics, Feng-Chia University, Taichung 407, Taiwan

• Shi Hsin-Chien

  Department of Electronic Engineering, Feng-Chia University, Taichung 407, Taiwan

• Yang Shui-Yuang

  Department of Electronic Engineering, Feng-Chia University, Taichung 407, Taiwan

• Lin Ya-Ting

  The Graduate Institute of Electrical and Communications Engineering, Feng-Chia University, Taichung 407, Taiwan

• Lee Chia-Wei

  Department of Electronic Engineering, Feng-Chia University, Taichung 407, Taiwan

• Wu Chien

  The Graduate Institute of Electrical and Communications Engineering, Feng-Chia University, Taichung 407, Taiwan

• Lin Chen-Cheng

  Department of Electronic Engineering, Feng-Chia University, Taichung 407, Taiwan

• Young San-Lin

  Department of Electronic Engineering, Hsiuping Iustitue of Technology, Taichung 412, Taiwan

• Shi Jen-Bin

  Department of Electronic Engineering, Feng-Chia University, Taichung 407, Taiwan

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