DICP OpenIR
The effect of Li-substitution on the M-phases of AgNbO3
Khan, H. U.1; Sterianou, I.1; Miao, S.1,2; Pokorny, J.1,3; Reaney, I. M.1
刊名JOURNAL OF APPLIED PHYSICS
2012-01-15
DOI10.1063/1.3677871
111期:2
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Physics, Applied
研究领域[WOS]Physics
关键词[WOS]AGNB1-XTAXO3 SOLID-SOLUTIONS ; NIOBATE SINGLE-CRYSTALS ; DIELECTRIC-PROPERTIES ; SILVER NIOBATE ; PIEZOELECTRIC PROPERTIES ; FERROELECTRIC PHASE ; RAMAN-SCATTERING ; LITHIUM-NIOBATE ; TRANSITIONS ; CERAMICS
英文摘要Ceramics in the solid solution, LixAg1-xNbO3 (LAN) with 0 <= x <= 0.20, have been synthesized by the mixed oxide method. X-ray diffraction (XRD) revealed that only compositions with x <= 0.05 were single phase which were indexed according to Pbcm symmetry with a unit cell, root 2a(p) x root 2a(p) x 4a(p) (where a(p) is the fundamental perovskite lattice parameter). For compositions with x >= 0.1, second phase peaks attributed to LiNbO3 were observed and the matrix phase transformed to a metrically rhombohedral structure according to XRD. A phase transition at 0.05 < x <= 0.1 was confirmed by Raman spectroscopy and electron diffraction but the latter technique revealed superstructure reflections for x >= 0.1 at +/- 1/6{00l} and 1/2{ooo} +/- 1/6{00l} (where o = odd). These support the premise that Li doping invokes a new complex modulated tilt system with a root 2a(p) x root 2a(p) x 6a(p) unit cell rather than root 2a(p) x root 2a(p) x 4a(p) (Pbcm). Reflections of the type +/- 1/6{00l} are, however, streaked along the inverted right perpendicular001inverted left perpendicular direction indicating that the structure may be incommensurate or only partially ordered. The appearance of the root 2a(p) x root 2a(p) x 6a(p) structure is associated with strong asymmetry in the peak in permittivity attributed to the M-3-M-2 and a decrease in intensity of the peak in permittivity associated with the M-2-M-1 transition. Slim polarization versus field curves characteristic of weak ferroelectricity were observed for compositions with x <= 0.05 but for higher values of x the loops were unsaturated albeit with larger remanent polarization. (C) 2012 American Institute of Physics. [doi: 10.1063/1.3677871]
语种英语
WOS记录号WOS:000299792400065
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/142956
专题中国科学院大连化学物理研究所
作者单位1.Univ Sheffield, Dept Mat Sci & Engn, Sheffield S1 3JD, S Yorkshire, England
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Acad Sci Czech Republic, Inst Phys, Prague 18221 8, Czech Republic
推荐引用方式
GB/T 7714
Khan, H. U.,Sterianou, I.,Miao, S.,et al. The effect of Li-substitution on the M-phases of AgNbO3[J]. JOURNAL OF APPLIED PHYSICS,2012,111(2).
APA Khan, H. U.,Sterianou, I.,Miao, S.,Pokorny, J.,&Reaney, I. M..(2012).The effect of Li-substitution on the M-phases of AgNbO3.JOURNAL OF APPLIED PHYSICS,111(2).
MLA Khan, H. U.,et al."The effect of Li-substitution on the M-phases of AgNbO3".JOURNAL OF APPLIED PHYSICS 111.2(2012).
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Khan, H. U.]的文章
[Sterianou, I.]的文章
[Miao, S.]的文章
百度学术
百度学术中相似的文章
[Khan, H. U.]的文章
[Sterianou, I.]的文章
[Miao, S.]的文章
必应学术
必应学术中相似的文章
[Khan, H. U.]的文章
[Sterianou, I.]的文章
[Miao, S.]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。