Monoclinic (K,Na)NbO3 Ferroelectric Phase in Epitaxial Films

doi:10.1002/aelm.201700226

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Monoclinic (K,Na)NbO3 Ferroelectric Phase in Epitaxial Films
	Luo, J; Sun, W; Zhou, Z; Lee, HY; Wang, K; Zhu, FY; Bai, Y; Wang, ZJ; Li, JF
刊名	ADVANCED ELECTRONIC MATERIALS
	2017
卷号	3 期号:10 页码:-
关键词	Lead-free Piezoceramics High Curie-temperature Bifeo3 Thin-films Polarization Rotation Free Ceramics Piezoelectric Properties Giant Piezoelectricity Solid-solution Pbzr1-xtixo3 Performance
ISSN号	2199-160X
DOI	10.1002/aelm.201700226
文献子类	期刊论文
英文摘要	Monoclinic phases, as intermediate phases at the morphotropic phase boundary, have been considered as the origin of high piezoelectricity in various piezoelectric systems. However, those monoclinic phases have seldom been experimentally observed at the phase boundary in lead-free (K,Na)NbO3 (KNN)-based materials. This work shows that KNN epitaxial thin films demonstrate a monoclinic M-C phase stabilized by elastic strain at room temperature, which is identified by both synchrotron X-ray reciprocal space mapping and piezoresponse force microscopy. It is revealed that the piezoelectricity is greatly enhanced at 170 degrees C due to the monoclinic M-C-M-A phase boundary. The discovery of monoclinic phases in this work may open an avenue for developing a new thermotropic phase boundary in KNN-based materials. The results also provide a guide for the exploration of high piezoelectricity driven by monoclinic phases in lead-free piezoelectric materials.
WOS关键词	LEAD-FREE PIEZOCERAMICS ; HIGH CURIE-TEMPERATURE ; BIFEO3 THIN-FILMS ; POLARIZATION ROTATION ; FREE CERAMICS ; PIEZOELECTRIC PROPERTIES ; GIANT PIEZOELECTRICITY ; SOLID-SOLUTION ; PBZR1-XTIXO3 ; PERFORMANCE
语种	英语
WOS记录号	WOS:000412593400008
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/28739]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 GB/T 7714	Luo, J,Sun, W,Zhou, Z,et al. Monoclinic (K,Na)NbO3 Ferroelectric Phase in Epitaxial Films[J]. ADVANCED ELECTRONIC MATERIALS,2017,3(10):-.
APA	Luo, J.,Sun, W.,Zhou, Z.,Lee, HY.,Wang, K.,...&Li, JF.(2017).Monoclinic (K,Na)NbO3 Ferroelectric Phase in Epitaxial Films.ADVANCED ELECTRONIC MATERIALS,3(10),-.
MLA	Luo, J,et al."Monoclinic (K,Na)NbO3 Ferroelectric Phase in Epitaxial Films".ADVANCED ELECTRONIC MATERIALS 3.10(2017):-.