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  Ultrafast switching of composite order in A3C60

Werner, P., Strand, H. U. R., Hoshino, S., & Eckstein, M. (2017). Ultrafast switching of composite order in A3C60. Physical Review B, 95(19): 195405. doi:10.1103/PhysRevB.95.195405.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0002-1523-F Version Permalink: http://hdl.handle.net/21.11116/0000-0004-9145-A
Genre: Journal Article

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PhysRevB.95.195405.pdf (Publisher version), 2MB
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PhysRevB.95.195405.pdf
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2017
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© American Physical Society

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https://dx.doi.org/10.1103/PhysRevB.95.195405 (Publisher version)
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 Creators:
Werner, P.1, Author
Strand, H. U. R.1, Author
Hoshino, S.2, Author
Eckstein, M.3, 4, Author              
Affiliations:
1Department of Physics, University of Fribourg, ou_persistent22              
2RIKEN Center for Emergent Matter Science (CEMS), Wako, ou_persistent22              
3Theory of Correlated Systems out of Equilibrium, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938296              
4University of Hamburg-CFEL, ou_persistent22              

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 Abstract: We study the controlled manipulation of the Jahn-Teller metal state of fulleride compounds using nonequilibrium dynamical mean-field theory. This anomalous metallic state is a spontaneous orbital-selective Mott phase, which is characterized by one metallic and two insulating orbitals. Using protocols based on transiently reduced hopping amplitudes or periodic electric fields, we demonstrate the possibility to switch orbitals between Mott insulating and metallic on a subpicosecond time scale, and to rotate the order parameter between three equivalent states that can be distinguished by their anisotropic conductance. The Jahn-Teller metal phase of alkali-doped fullerides thus provides a platform for ultrafast persistent memory devices.

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Language(s): eng - English
 Dates: 2017-03-032016-12-302017-05-052017-05-05
 Publication Status: Published in print
 Pages: -
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 Rev. Method: Peer
 Identifiers: DOI: 10.1103/PhysRevB.95.195405
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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 95 (19) Sequence Number: 195405 Start / End Page: - Identifier: ISSN: 1098-0121
CoNE: /journals/resource/954925225008