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

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	Chiral phase transition at 180 degrees domain walls in ferroelectric PbTiO3 driven by epitaxial compressive strains
	Wang, Yu-Jia; Zhu, Yin-Lian; Ma, Xiu-Liang; Ma, XL (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Wenhua Rd 72, Shenyang 110016, Liaoning, Peoples R China.; Ma, XL (reprint author), Lanzhou Univ Technol, Sch Mat Sci & Engn, Langongping Rd 287, Lanzhou 730050, Gansu, Peoples R China.
	2017-10-07
发表期刊	AMER INST PHYSICS
ISSN	0021-8979
卷号	122 期号:13 页码:-
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.; 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.
部门归属	[wang, yu-jia ; zhu, yin-lian ; ma, xiu-liang] chinese acad sci, inst met res, shenyang natl lab mat sci, wenhua rd 72, shenyang 110016, liaoning, peoples r china ; [ma, xiu-liang] lanzhou univ technol, sch mat sci & engn, langongping rd 287, lanzhou 730050, gansu, peoples r china
学科领域	Physics, Applied
资助者	National Natural Science Foundation of China [51401212, 51571197, 51231007, 51671194, 51521091]; Doctoral Initiation Foundation of Liaoning Province [20141144]; National Basic Research Program of China [2014CB921002]; Key Research Program of Frontier Sciences CAS [QYZDJ-SSW-JSC010]
收录类别	SCI
语种	英语
WOS记录号	WOS:000412328400021
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/79047
专题	中国科学院金属研究所
通讯作者	Ma, XL (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Wenhua Rd 72, Shenyang 110016, Liaoning, Peoples R China.; Ma, XL (reprint author), 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,et al. Chiral phase transition at 180 degrees domain walls in ferroelectric PbTiO3 driven by epitaxial compressive strains[J]. AMER INST PHYSICS,2017,122(13):-.
APA	Wang, Yu-Jia,Zhu, Yin-Lian,Ma, Xiu-Liang,Ma, XL ,&Ma, XL .(2017).Chiral phase transition at 180 degrees domain walls in ferroelectric PbTiO3 driven by epitaxial compressive strains.AMER INST 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".AMER INST PHYSICS 122.13(2017):-.