Electronic structures and abnormal phonon behaviors of cobalt-modified Na0.5Bi0.5TiO3-6% BaTiO3 single crystals

CORC > 上海硅酸盐研究所 > 中国科学院上海硅酸盐研究所 > 无机功能材料与器件重点实验室 > 期刊论文

	Electronic structures and abnormal phonon behaviors of cobalt-modified Na0.5Bi0.5TiO3-6% BaTiO3 single crystals
	Huang, T.1,2; Zhang, P.1,2; Xu, L. P.1,2; Chen, C.3; Zhang, J. Z.1,2; Hu, Z. G.1,2; Luo, H. S.4; Chu, J. H.1,2
刊名	AIP ADVANCES
	2016-10-01
卷号	6 期号:10
英文摘要	Optical properties, electronic structures, and structural variations of x wt% cobalt (Co) doped Na0.5Bi0.5TiO3-6% BaTiO3 (x=0%, 0.5%, 0.8%) single crystals have been studied by temperature-dependent optical ellipsometry and Raman spectra from 250 to 650 K. Based on the temperature evolution of electronic transitions (E-cp1 and E-cp2) and the phonon modes involving Ti-O vibrations, two critical temperature points exhibit an increasing trend with Co dopants, which are related to structural variations for ferroelectric to anti-ferroelectric, and anti-ferroelectric to paraelectric transition, respectively. Additionally, distinguishing abnormal phonon behaviors can be observed from Raman spectra for the crystal of x=0.5% and 0.8%, which show reverse frequency shift of the modes involving Ti-O vibration. It can be ascribed to different relative concentration of Co2+ and Co3+ in the crystals, which has been confirmed by X-ray Photoelectron Spectroscopy data. (C) 2016 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
WOS标题词	Science & Technology ; Technology ; Physical Sciences
类目[WOS]	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
研究领域[WOS]	Science & Technology - Other Topics ; Materials Science ; Physics
关键词[WOS]	ELECTRICAL-PROPERTIES ; CERAMICS ; PIEZOCERAMICS ; RAMAN
收录类别	SCI
语种	英语
WOS记录号	WOS:000387571200049
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/21987]
专题	上海硅酸盐研究所_无机功能材料与器件重点实验室_期刊论文
作者单位	1.Tech Ctr Multifunct Magnetoopt Spect ECNU, Shanghai, Peoples R China 2.East China Normal Univ, Dept Elect Engn, Shanghai 200241, Peoples R China 3.Jingdezhen Ceram Inst, Dept Mat Sci & Engn, Jiangxi Key Lab Adv Ceram Mat, Jingdezhen 333001, Peoples R China 4.Chinese Acad Sci, Shanghai Inst Ceram, R&D Ctr Synthet Crystals, Shanghai 201800, Peoples R China
推荐引用方式 GB/T 7714	Huang, T.,Zhang, P.,Xu, L. P.,et al. Electronic structures and abnormal phonon behaviors of cobalt-modified Na0.5Bi0.5TiO3-6% BaTiO3 single crystals[J]. AIP ADVANCES,2016,6(10).
APA	Huang, T..,Zhang, P..,Xu, L. P..,Chen, C..,Zhang, J. Z..,...&Chu, J. H..(2016).Electronic structures and abnormal phonon behaviors of cobalt-modified Na0.5Bi0.5TiO3-6% BaTiO3 single crystals.AIP ADVANCES,6(10).
MLA	Huang, T.,et al."Electronic structures and abnormal phonon behaviors of cobalt-modified Na0.5Bi0.5TiO3-6% BaTiO3 single crystals".AIP ADVANCES 6.10(2016).