globalchange  > 气候变化与战略
DOI: 10.1073/pnas.1808414115
论文题名:
How optical excitation controls the structure and properties of vanadium dioxide
作者: Otto M.R.; René de Cotret L.P.; Valverde-Chavez D.A.; Tiwari K.L.; Émond N.; Chaker M.; Cooke D.G.; Siwick B.J.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2019
卷: 116, 期:2
起始页码: 450
结束页码: 455
语种: 英语
英文关键词: Photoinduced phase transitions ; Strongly correlated materials ; Terahertz spectroscopy ; Ultrafast electron scattering
Scopus关键词: metal oxide ; nanomaterial ; unclassified drug ; vanadium dioxide ; Article ; chemical analysis ; complex formation ; controlled study ; crystal structure ; dispersity ; electric conductivity ; electron diffraction ; electron transport ; excitation ; phase transition ; priority journal ; quantitative analysis ; structure activity relation ; structure analysis ; terahertz time domain spectroscopy ; ultrafast electron diffraction
英文摘要: We combine ultrafast electron diffraction and time-resolved terahertz spectroscopy measurements to link structure and electronic transport properties during the photoinduced insulator–metal transitions in vanadium dioxide. We determine the structure of the metastable monoclinic metal phase, which exhibits antiferroelectric charge order arising from a thermally activated, orbital-selective phase transition in the electron system. The relative contribution of the photoinduced monoclinic and rutile metals to the time-dependent and pump-fluence–dependent multiphase character of the film is established, as is the respective impact of these two distinct phase transitions on the observed changes in terahertz conductivity. Our results represent an important example of how light can control the properties of strongly correlated materials and demonstrate that multimodal experiments are essential when seeking a detailed connection between ultrafast changes in optical-electronic properties and lattice structure. © 2019 National Academy of Sciences. All Rights Reserved.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163577
Appears in Collections:气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Otto, M.R., Department of Physics, Center for the Physics of Materials, McGill University, Montreal, QC H3A 2T8, Canada; René de Cotret, L.P., Department of Physics, Center for the Physics of Materials, McGill University, Montreal, QC H3A 2T8, Canada; Valverde-Chavez, D.A., Department of Physics, Center for the Physics of Materials, McGill University, Montreal, QC H3A 2T8, Canada; Tiwari, K.L., Department of Physics, Center for the Physics of Materials, McGill University, Montreal, QC H3A 2T8, Canada; Émond, N., Institut National de la Recherche Scientifique, Centre Énergie Matériaux et Télécommunications, Université du Québec, Varennes, QC J3X 1S2, Canada; Chaker, M., Institut National de la Recherche Scientifique, Centre Énergie Matériaux et Télécommunications, Université du Québec, Varennes, QC J3X 1S2, Canada; Cooke, D.G., Department of Physics, Center for the Physics of Materials, McGill University, Montreal, QC H3A 2T8, Canada; Siwick, B.J., Department of Physics, Center for the Physics of Materials, McGill University, Montreal, QC H3A 2T8, Canada, Department of Chemistry, McGill University, Montreal, QC H3A 0B8, Canada

Recommended Citation:
Otto M.R.,René de Cotret L.P.,Valverde-Chavez D.A.,et al. How optical excitation controls the structure and properties of vanadium dioxide[J]. Proceedings of the National Academy of Sciences of the United States of America,2019-01-01,116(2)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Otto M.R.]'s Articles
[René de Cotret L.P.]'s Articles
[Valverde-Chavez D.A.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Otto M.R.]'s Articles
[René de Cotret L.P.]'s Articles
[Valverde-Chavez D.A.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Otto M.R.]‘s Articles
[René de Cotret L.P.]‘s Articles
[Valverde-Chavez D.A.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

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