Tetragonal-tetragonal-monoclinic-rhombohedral transition: Strain relaxation of heavily compressed BiFeO3 epitaxial thin films

	Tetragonal-tetragonal-monoclinic-rhombohedral transition: Strain relaxation of heavily compressed BiFeO3 epitaxial thin films
	Fu, Z; Yin, ZG; Chen, NF; Zhang, XW; Zhao, YJ; Bai, YM; Chen, Y; Wang, HH; Zhang, XL; Wu, JL;陈雨
刊名	APPLIED PHYSICS LETTERS
	2014
卷号	104 期号:5 页码:52908
英文摘要	BiFeO3 films with in-plane compressive strain of -3.5% were deposited on oxygen-deficient La0.3Sr0.7MnO3-delta buffered SrTiO3(001) substrates. This highly strained BiFeO3 does not relax directly into its rhombohedral parent phase upon increasing the film thickness. Instead, a multi-step path involving structural transitions is observed. The misfit stress is first accommodated by the occurrence of true tetragonal BiFeO3 with c/a ratio of 1.23, then reduced by the transformation to the M-C-type monoclinic structure, and finally alleviated through the M-C-rhombohedral transition. Moreover, this process enables the formation of strain-driven morphotropic phase boundaries at a stress level much lower than the reported threshold of -4.5%. (C) 2014 AIP Publishing LLC.
学科主题	Physics
收录类别	SCI
WOS记录号	WOS:000331644100095
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/224826]
专题	高能物理研究所_多学科研究中心
推荐引用方式 GB/T 7714	Fu, Z,Yin, ZG,Chen, NF,et al. Tetragonal-tetragonal-monoclinic-rhombohedral transition: Strain relaxation of heavily compressed BiFeO3 epitaxial thin films[J]. APPLIED PHYSICS LETTERS,2014,104(5):52908.
APA	Fu, Z.,Yin, ZG.,Chen, NF.,Zhang, XW.,Zhao, YJ.,...&王焕华.(2014).Tetragonal-tetragonal-monoclinic-rhombohedral transition: Strain relaxation of heavily compressed BiFeO3 epitaxial thin films.APPLIED PHYSICS LETTERS,104(5),52908.
MLA	Fu, Z,et al."Tetragonal-tetragonal-monoclinic-rhombohedral transition: Strain relaxation of heavily compressed BiFeO3 epitaxial thin films".APPLIED PHYSICS LETTERS 104.5(2014):52908.