High-Performance Ferroelectric Bi0.5Na0.5TiO3 Single Crystals Grown by Top-Seeded Solution Growth Method under High-Pressure Oxygen Atmosphere

被引：15
作者：
Kitanaka, Yuuki [1 ]
Onozuka, Hiroaki [1 ]
Noguchi, Yuji [1 ]
Miyayama, Masaru [1 ]
机构：
[1] Univ Tokyo, Res Ctr Adv Sci & Technol, Meguro Ku, Tokyo 1538904, Japan
来源：
FERROELECTRICS | 2011年 / 414卷
基金：
日本学术振兴会;
关键词：
FREE PIEZOELECTRIC CERAMICS; THIN-FILMS; SYSTEM;
D O I：
10.1080/00150193.2011.577291
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Top-seeded solution growth method under high-oxygen-pressure atmosphere has been developed for obtaining high-performance and large-sized single crystals of ferroelectric Bi0.5Na0.5TiO3 (BNT). Crystals grown at 1000 degrees C at a Po-2 of 0.9 MPa exhibited a well-saturated hysteresis with a remanent polarization of 34 mu C/cm(2) and a coercive field of 22 kV/cm along < 100 >(cubic). The spontaneous polarization of BNT along < 111 >(cubic) is estimated to be 59 mu C/cm(2) from the measured polarization properties along < 100 >(cubic) of the crystals obtained.
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页码：24 / 29
页数：6
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