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  Direct observation of collective modes coupled to molecular orbital–driven charge transfer

Ishikawa, T., Hayes, S., Keskin, S., Corthey, G., Hada, M., Pichugin, K., et al. (2015). Direct observation of collective modes coupled to molecular orbital–driven charge transfer. Science, 350(6267), 1501-1505. doi:10.1126/science.aab3480.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-377C-1 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-F3F3-2
Genre: Journal Article

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http://dx.doi.org/10.1126/science.aab3480 (Publisher version)
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 Creators:
Ishikawa, Tadahiko1, Author
Hayes, Stuart2, 3, Author              
Keskin, Sercan2, 3, 4, Author              
Corthey, Gaston2, 3, Author              
Hada, Masaki2, 5, Author              
Pichugin, Kostyantyn2, Author              
Marx, Alexander2, 3, Author              
Hirscht, Julian2, 3, Author              
Shionuma, Kenta1, Author
Onda, Ken5, Author
Okimoto, Yoichi1, Author
Koshihara, Shin-ya1, 6, Author
Yamamoto, Takashi7, Author
Cui, Hengbo8, Author
Nomura, Mitsushiro8, Author
Oshima, Yugo8, Author
Abdel-Jawad, Majed8, Author
Kato, Reizo8, Author
Miller, R. J. Dwayne2, 3, 9, Author              
Affiliations:
1Department of Chemistry and Materials Science, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro-ku, Tokyo 152-8551, Japan, ou_persistent22              
2Miller Group, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938288              
3The Hamburg Centre for Ultrafast Imaging, University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany, ou_persistent22              
4International Max Planck Research School for Ultrafast Imaging & Structural Dynamics (IMPRS-UFAST), Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266714              
5JST-PRESTO, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, Kanagawa 226-8502, Japan, ou_persistent22              
6JST-CREST, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan, ou_persistent22              
7Graduate School of Science and Engineering, Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan, ou_persistent22              
8Condensed Molecular Materials Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan, ou_persistent22              
9Departments of Chemistry and Physics, University of Toronto, Toronto, Ontario M5S 3H6, Canada, ou_persistent22              

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 Abstract: Correlated electron systems can undergo ultrafast photoinduced phase transitions involving concerted transformations of electronic and lattice structure. Understanding these phenomena requires identifying the key structural modes that couple to the electronic states. We report the ultrafast photoresponse of the molecular crystal Me4P[Pt(dmit)2]2, which exhibits a photoinduced charge transfer similar to transitions between thermally accessible states, and demonstrate how femtosecond electron diffraction can be applied to directly observe the associated molecular motions. Even for such a complex system, the key large-amplitude modes can be identified by eye and involve a dimer expansion and a librational mode. The dynamics are consistent with the time-resolved optical study, revealing how the electronic, molecular, and lattice structures together facilitate ultrafast switching of the state.

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Language(s): eng - English
 Dates: 2015-04-142015-11-062015-12-182015-12-18
 Publication Status: Published in print
 Pages: 5
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1126/science.aab3480
 Degree: -

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Title: Science
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Association for the Advancement of Science
Pages: - Volume / Issue: 350 (6267) Sequence Number: - Start / End Page: 1501 - 1505 Identifier: ISSN: 0036-8075
CoNE: /journals/resource/991042748276600_1