Delicate balance between ferroelectricity and antiferroelectricity in hexagonal InMnO3

被引：33
|
作者：
Huang, F. -T. [1 ,2 ]
Wang, X. [1 ,2 ]
Oh, Y. S. [1 ,2 ]
Kurushima, K. [3 ]
Mori, S. [4 ]
Horibe, Y. [1 ,2 ]
Cheong, S. -W. [1 ,2 ]
机构：
[1] Rutgers State Univ, Rutgers Ctr Emergent Mat, Piscataway, NJ 08854 USA
[2] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA
[3] Toray Res Ctr, Otsu, Shiga 5208567, Japan
[4] Osaka Prefecture Univ, Dept Mat Sci, Sakai, Osaka 5998531, Japan
来源：
PHYSICAL REVIEW B | 2013年 / 87卷 / 18期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1103/PhysRevB.87.184109
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The presence of ferroelectricity in hexagonal InMnO3 has been highly under debate. The results of our comprehensive experiments of low-temperature (T) polarization, transmission electron microscopy, and high-angle annular dark-field scanning TEM on well-controlled InMnO3 reveal that the ground state is ferroelectric with P6(3)cm symmetry, but a nonferroelectric P (3) over bar c1 state exists at high T and can be quenched to room temperature. We found that the competing ferroelectric and antiferroelectric phases coexist in mesoscopic scales and can be deliberately controlled by varying thermal treatments.
引用
收藏
页数：4
相关论文
共 50 条
12345