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  Phase Diagram for Light-Induced Superconductivity in κ−(ET)2−X

Buzzi, M., Nicoletti, D., Fava, S., Jotzu, G., Miyagawa, K., Kanoda, K., et al. (2021). Phase Diagram for Light-Induced Superconductivity in κ−(ET)2−X. Physical Review Letters, 127(19): 197002. doi:10.1103/PhysRevLett.127.197002.

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PhysRevLett.127.197002.pdf (Publisher version), 2MB
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PhysRevLett.127.197002.pdf
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Open Access. - Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Open access publication funded by the Max Planck Society.
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2021
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© the Author(s). Published by the American Physical Society

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https://arxiv.org/abs/2106.14244 (Preprint)
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 Creators:
Buzzi, M.1, Author           
Nicoletti, D.1, Author           
Fava, S.1, Author           
Jotzu, G.1, Author           
Miyagawa, K.2, Author
Kanoda, K.2, Author
Henderson, A.3, Author
Siegrist, T.3, Author
Schlueter, J. A.3, 4, Author
Nam, M. -S.5, Author
Ardavan, A.5, Author
Cavalleri, A.1, 5, Author           
Affiliations:
1Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938293              
2Department of Applied Physics, University of Tokyo, ou_persistent22              
3National High Magnetic Field Laboratory, ou_persistent22              
4Division of Material Research, National Science Foundation, ou_persistent22              
5Department of Physics, Clarendon Laboratory, University of Oxford, ou_persistent22              

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 Abstract: Resonant optical excitation of certain molecular vibrations in κ−(BEDT−TTF)2Cu[N(CN)2]Br has been shown to induce transient superconductinglike optical properties at temperatures far above equilibrium Tc. Here, we report experiments across the bandwidth-tuned phase diagram of this class of materials, and study the Mott insulator κ−(BEDT−TTF)2Cu[N(CN)2]Cl and the metallic compound κ−(BEDT−TTF)2Cu(NCS)2. We find nonequilibrium photoinduced superconductivity only in κ−(BEDT−TTF)2Cu[N(CN)2]Br, indicating that the proximity to the Mott insulating phase and possibly the presence of preexisting superconducting fluctuations are prerequisites for this effect.

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Language(s): eng - English
 Dates: 2021-06-272021-10-052021-11-022021-11-05
 Publication Status: Published in print
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 Rev. Type: Peer
 Identifiers: arXiv: 2106.14244
DOI: 10.1103/PhysRevLett.127.197002
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Grant ID : 319286
Funding program : Funding Programme 7 (FP7)
Funding organization : European Commission (EC)
Project name : We acknowledge support from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) via the excellence cluster “The Hamburg Centre for Ultrafast Imaging” (EXC 1074—project ID 194651731) and the priority program SFB925 (Project ID 170620586).
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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 127 (19) Sequence Number: 197002 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1