Saturated and Pinched Ferroelectric Hysteresis Loops in BiFeO3 Ceramics

被引：0

作者：

Choi, Jin Hong ^{[1
]}

Yoshimura, Takeshi ^{[1
]}

Fujimura, Norifumi ^{[1
]}

Cheon, Chae Il ^{[2
]}

机构：

[1] Osaka Prefecture Univ, Dept Phys & Elect, Grad Sch Engn, Sakai, Osaka 5998531, Japan

[2] Hoseo Univ, Dept Mat Sci & Engn, Asan 31499, South Korea

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2019年 / 74卷 / 03期

关键词：

BiFeO3; Hysteresis loop; Ceramic; Sintering; POLARIZATION;

D O I：

10.3938/jkps.74.269

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

BiFeO3 (BFO) ceramics were prepared by conventional solid-state reaction method without quenching. The effect of the sintering condition on the phase evolution and the ferroelectric properties of these BFO ceramics were investigated. A pinched polarization - electric field (P-E) hysteresis loop was observed in the sample sintered at high temperature for a short period (820 degrees C for 1 hour) because the domain wall motion is restricted by a large number of ionic defects such as oxygen vacancies. The BFO sample sintered at low temperature for a long period (760 degrees C for 6 hours) displayed a well-saturated P-E hysteresis loop due to its low ionic defect density.

引用

页码：269 / 273

页数：5

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