CAS OpenIR  > 中科院上海应用物理研究所2011-2018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
2017
Source PublicationADVANCED ELECTRONIC MATERIALS
ISSN2199-160X
Volume3Issue:10Pages:-
Subtype期刊论文
AbstractMonoclinic 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.
KeywordLead-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
WOS KeywordLEAD-FREE PIEZOCERAMICS ; HIGH CURIE-TEMPERATURE ; BIFEO3 THIN-FILMS ; POLARIZATION ROTATION ; FREE CERAMICS ; PIEZOELECTRIC PROPERTIES ; GIANT PIEZOELECTRICITY ; SOLID-SOLUTION ; PBZR1-XTIXO3 ; PERFORMANCE
Indexed BySCI
Language英语
WOS IDWOS:000412593400008
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/28739
Collection中科院上海应用物理研究所2011-2018年
Recommended Citation
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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