CAS OpenIR  > 中科院上海应用物理研究所2011-2018年
Tunable metal-insulator transition in Nd1-xYxNiO3 (x=0.3, 0.4) perovskites thin film at near room temperature
Shao, T; Qi, ZM; Wang, YY; Li, YY; Yang, M; Wang, Y; Zhang, GB; Liu, M; Qi, ZM (reprint author), Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China.
2015
Source PublicationAPPLIED PHYSICS LETTERS
ISSN0003-6951
Volume107Issue:2Pages:
Subtype期刊文献
AbstractMetal-insulator transition (MIT) occurs due to the charge disproportionation and lattice distortions in rare-earth nickelates. Existing studies revealed that the MIT behavior of rare-earth nickelates is fairly sensitive to external stress/pressure, suggesting a viable route for MIT strain engineering. Unlike applying extrinsic strain, the MIT can also be modulated by through rare-earth cation mixing, which can be viewed as intrinsic quantum stress. We choose Nd1-xYxNiO3 (x = 0.3, 0.4) perovskites thin films as a prototype system to exhibit the tunable sharp MIT at near room temperature. By adjusting Y concentration, the transition temperature of the thin films can be changed within the range of 340-360 K. X-ray diffraction, X-ray absorption tine structure (XAFS), and in situ infrared spectroscopy are employed to probe the structural and optical property variation affected by composition and temperature. The infrared transmission intensity decreases with temperature across the MIT, indicating a pronounced thermochromic effect. Meanwhile, the XAFS result exhibits that the crystal atomistic structure changes accompanying with the Y atoms incorporation and MIT phase transition. The heavily doped Y atoms result in the pre-edge peak descent and Ni-O bond elongation, suggesting an enhanced charge disproportionation effect and the weakening of hybridization between Ni-3d and O-2p orbits. (C) 2015 AIP Publishing LLC.
KeywordRay-absorption Spectroscopy Rnio3 Perovskites Local-structure
Language英语
WOS IDWOS:000358530300012
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/25087
Collection中科院上海应用物理研究所2011-2018年
Corresponding AuthorQi, ZM (reprint author), Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China.
Recommended Citation
GB/T 7714
Shao, T,Qi, ZM,Wang, YY,et al. Tunable metal-insulator transition in Nd1-xYxNiO3 (x=0.3, 0.4) perovskites thin film at near room temperature[J]. APPLIED PHYSICS LETTERS,2015,107(2):—.
APA Shao, T.,Qi, ZM.,Wang, YY.,Li, YY.,Yang, M.,...&Qi, ZM .(2015).Tunable metal-insulator transition in Nd1-xYxNiO3 (x=0.3, 0.4) perovskites thin film at near room temperature.APPLIED PHYSICS LETTERS,107(2),—.
MLA Shao, T,et al."Tunable metal-insulator transition in Nd1-xYxNiO3 (x=0.3, 0.4) perovskites thin film at near room temperature".APPLIED PHYSICS LETTERS 107.2(2015):—.
Files in This Item:
File Name/Size DocType Version Access License
Tunable metal-insula(1255KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Shao, T]'s Articles
[Qi, ZM]'s Articles
[Wang, YY]'s Articles
Baidu academic
Similar articles in Baidu academic
[Shao, T]'s Articles
[Qi, ZM]'s Articles
[Wang, YY]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Shao, T]'s Articles
[Qi, ZM]'s Articles
[Wang, YY]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Tunable metal-insulator transition in Nd1-xYxNiO3 (x=0.3, 0.4) perovskites thin film at near room temperature.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.