Chiral phase transition at 180 degrees domain walls in ferroelectric PbTiO3 driven by epitaxial compressive strains

doi:10.1063/1.5006607

	Chiral phase transition at 180 degrees domain walls in ferroelectric PbTiO3 driven by epitaxial compressive strains
	Wang, Yu-Jia 1; Zhu, Yin-Lian 1; Ma, Xiu-Liang 1,2
刊名	JOURNAL OF APPLIED PHYSICS
	2017-10-07
卷号	122 期号:13
ISSN号	0021-8979
DOI	10.1063/1.5006607
英文摘要	Chiral ferroelectric domain walls are theoretically predicted to be promising in novel electronic memory devices. In order to develop a chirality-based device, understanding the chiral phase transition is of great importance for chirality manipulation. In this work, we systematically studied the chiral phase transition at 180 degrees domain walls in ferroelectric PbTiO3 (PTO) under epitaxial compressive strains by first principles calculations. It is found that with the increase of the compressive strain, the Bloch components decrease due to the coupling of polarization and strain, while the components normal to domain walls increase because of the large stress gradients. The domain wall changes from a mixed Ising-Bloch type to the Ising type. It is also found that the domain wall energy increases with the increment of compressive strain, indicating that the spacings of 180 degrees domain walls would be large for the highly compressed PTO films. These findings may provide useful information for the development of novel ferroelectric devices. Published by AIP Publishing.
WOS研究方向	Physics
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000412328400021
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33062]
专题	材料科学与工程学院材料科学与工程学院_特聘教授组
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Wenhua Rd 72, Shenyang 110016, Liaoning, Peoples R China; 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Langongping Rd 287, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yu-Jia,Zhu, Yin-Lian,Ma, Xiu-Liang. Chiral phase transition at 180 degrees domain walls in ferroelectric PbTiO3 driven by epitaxial compressive strains[J]. JOURNAL OF APPLIED PHYSICS,2017,122(13).
APA	Wang, Yu-Jia,Zhu, Yin-Lian,&Ma, Xiu-Liang.(2017).Chiral phase transition at 180 degrees domain walls in ferroelectric PbTiO3 driven by epitaxial compressive strains.JOURNAL OF APPLIED PHYSICS,122(13).
MLA	Wang, Yu-Jia,et al."Chiral phase transition at 180 degrees domain walls in ferroelectric PbTiO3 driven by epitaxial compressive strains".JOURNAL OF APPLIED PHYSICS 122.13(2017).