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
2017
发表期刊ADVANCED ELECTRONIC MATERIALS
ISSN2199-160X
卷号3期号:10页码:-
文章类型期刊论文
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.
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
DOI10.1002/aelm.201700226
关键词[WOS]LEAD-FREE PIEZOCERAMICS ; HIGH CURIE-TEMPERATURE ; BIFEO3 THIN-FILMS ; POLARIZATION ROTATION ; FREE CERAMICS ; PIEZOELECTRIC PROPERTIES ; GIANT PIEZOELECTRICITY ; SOLID-SOLUTION ; PBZR1-XTIXO3 ; PERFORMANCE
收录类别SCI
语种英语
WOS记录号WOS:000412593400008
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28739
专题中科院上海应用物理研究所2011-2018年
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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):-.
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