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  Photomolecular High-Temperature Superconductivity

Buzzi, M., Nicoletti, D., Fechner, M., Tancogne-Dejean, N., Sentef, M. A., Georges, A., et al. (2020). Photomolecular High-Temperature Superconductivity. Physical Review X, 10(3): 031028. doi:10.1103/PhysRevX.10.031028.

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PhysRevX.10.031028.pdf (Publisher version), 2MB
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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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https://dx.doi.org/10.1103/PhysRevX.10.031028 (Publisher version)
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 Creators:
Buzzi, M.1, Author              
Nicoletti, D.1, Author              
Fechner, M.1, Author              
Tancogne-Dejean, N.2, Author              
Sentef, M. A.3, Author              
Georges, A.4, 5, Author
Biesner, T.6, Author
Uykur, E.6, Author
Dressel, M.6, Author
Henderson, A.7, Author
Siegrist, T.7, Author
Schlueter, J. A.7, 8, Author
Miyagawa, K.9, Author
Kanoda, K.9, Author
Nam, M.-S.10, Author
Ardavan, A.8, Author
Coulthard, J.8, Author
Tindall, J.8, Author
Schlawin, F.8, Author
Jaksch, D.8, Author
Cavalleri, A.1, 8, Author               more..
Affiliations:
1Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938293              
2Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              
3Theoretical Description of Pump-Probe Spectroscopies in Solids, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_3012828              
4Center for Computational Quantum Physics (CCQ), The Flatiron Institute, New York, ou_persistent22              
5Collège de France, ou_persistent22              
61. Physikalisches Institut, Universität Stuttgart, ou_persistent22              
7National High Magnetic Field Laboratory, ou_persistent22              
8Division of Material Research, National Science Foundation, Alexandria, ou_persistent22              
9Department of Applied Physics, University of Tokyo, ou_persistent22              
10Department of Physics, Clarendon Laboratory, University of Oxford, ou_persistent22              

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 Abstract: The properties of organic conductors are often tuned by the application of chemical or external pressure, which change orbital overlaps and electronic bandwidths while leaving the molecular building blocks virtually unperturbed. Here, we show that, unlike any other method, light can be used to manipulate the local electronic properties at the molecular sites, giving rise to new emergent properties. Targeted molecular excitations in the charge-transfer salt κ−(BEDT−TTF)2Cu[N(CN)2]Br induce a colossal increase in carrier mobility and the opening of a superconducting optical gap. Both features track the density of quasiparticles of the equilibrium metal and can be observed up to a characteristic coherence temperature T≃50  K, far higher than the equilibrium transition temperature TC=12.5  K. Notably, the large optical gap achieved by photoexcitation is not observed in the equilibrium superconductor, pointing to a light-induced state that is different from that obtained by cooling. First-principles calculations and model Hamiltonian dynamics predict a transient state with long-range pairing correlations, providing a possible physical scenario for photomolecular superconductivity.

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Language(s): eng - English
 Dates: 2020-06-042020-04-272020-06-042020-08-06
 Publication Status: Published online
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1103/PhysRevX.10.031028
 Degree: -

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Project name : QMAC
Grant ID : 319286
Funding program : Funding Programme 7 (FP7)
Funding organization : European Commission (EC)

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Title: Physical Review X
  Abbreviation : Phys. Rev. X
Source Genre: Journal
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Publ. Info: New York, NY : American Physical Society
Pages: - Volume / Issue: 10 (3) Sequence Number: 031028 Start / End Page: - Identifier: Other: 2160-3308
CoNE: https://pure.mpg.de/cone/journals/resource/2160-3308