Deterministic contribution of low symmetry phases to piezoresponse in oxide ferroelectrics

doi:10.1016/j.actamat.2020.116534

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	Deterministic contribution of low symmetry phases to piezoresponse in oxide ferroelectrics
	Zou, M.J.1; Tang, Y.L.1; Zhu, Y.L.1; Wang, Y.J.1; Yang, L.X.1; Ma, X.L.1,2
刊名	Acta Materialia
	2021-02-15
卷号	205
关键词	Crystallography Lead titanate Perovskite Phase transitions Piezoelectric ceramics Piezoelectric devices Polarization Strontium titanates Electric field induced External voltages Low symmetry phasis Morphotropic phase boundaries Perovskite oxides Piezoelectric property Piezoelectric response Polarization rotation
ISSN号	13596454
DOI	10.1016/j.actamat.2020.116534
英文摘要	Giant piezoelectricity has been thought to be originated from polarization rotation, electric-field-induced phase transformation or nano-domain reorientation in diverse complicated morphotropic phase boundaries (MPB) based piezoelectric ceramics. However, the deterministic contribution to the peak piezoelectricity is still elusive. Here, a full stage of piezoelectric response is presented in pure PbTiO3 films epitaxially constrained as the monoclinic phase on SrTiO3(111), where the as-prepared films feature complicated monoclinic nano-domains with {201} domain boundaries. By applying external voltage, the piezoelectric response undergoes three distinct stages which correspond, respectively, to the three existing mechanisms in terms of polarization rotation, nano-domain reorientation, and electric-field-induced phase transformation. A direct correlation between the electric-poling process and the piezoelectric response is established, confirming that the phase transformation from the monoclinic to tetragonal plays a dominant role for the superior piezoelectric properties of the oxide. This study clarifies the role of monoclinic phase by integrating the three individual mechanisms of piezoresponse into a single-phase perovskite oxide, which may facilitate the development of high-performance piezoelectric materials for electronic device applications. © 2020
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	Acta Materialia Inc
WOS记录号	WOS:000609936600013
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/147245]
专题	兰州理工大学
作者单位	1.Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Wenhua Road 72, Shenyang; 110016, China; 2.State Key Lab of Advanced Processing and Recycling on Non-ferrous Metals, Lanzhou University of Technology, Langongping Road 287, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Zou, M.J.,Tang, Y.L.,Zhu, Y.L.,et al. Deterministic contribution of low symmetry phases to piezoresponse in oxide ferroelectrics[J]. Acta Materialia,2021,205.
APA	Zou, M.J.,Tang, Y.L.,Zhu, Y.L.,Wang, Y.J.,Yang, L.X.,&Ma, X.L..(2021).Deterministic contribution of low symmetry phases to piezoresponse in oxide ferroelectrics.Acta Materialia,205.
MLA	Zou, M.J.,et al."Deterministic contribution of low symmetry phases to piezoresponse in oxide ferroelectrics".Acta Materialia 205(2021).