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Ultrafast switching...
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Werner, PhilippDepartment of Physics, University of Fribourg, Fribourg, Switzerland
(author)
Ultrafast switching of composite order in A(3)C(60)
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American Physical Society,2017
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LIBRIS-ID:oai:DiVA.org:oru-89959
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https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-89959URI
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https://doi.org/10.1103/PhysRevB.95.195405DOI
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
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Funding Agencies:European Research Council (ERC)European Commission 278023Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)Japan Society for the Promotion of ScienceGrants-in-Aid for Scientific Research (KAKENHI) 16H04021National Science Foundation (NSF) NSF PHY-1125915Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)Japan Society for the Promotion of ScienceGrants-in-Aid for Scientific Research (KAKENHI) 16H04021
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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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Strand, Hugo,1983-Department of Physics, University of Fribourg, Fribourg, Switzerland(Swepub:oru)hosd
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Hoshino, ShintaroRIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama, Japan
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Eckstein, MartinMax Planck Research Department for Structural Dynamics, University of Hamburg-CFEL, Hamburg, Germany
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Department of Physics, University of Fribourg, Fribourg, SwitzerlandRIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama, Japan
(creator_code:org_t)
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In:Physical Review B: American Physical Society95:192469-99502469-9969
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