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  Microscopic theory for the light-induced anomalous Hall effect in graphene

Sato, S., McIver, J. W., Nuske, M., Tang, P., Jotzu, G., Schulte, B., et al. (2019). Microscopic theory for the light-induced anomalous Hall effect in graphene. Physical Review B, 99(21): 214302. doi:10.1103/PhysRevB.99.214302.

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PhysRevB.99.214302.pdf (Verlagsversion), 2MB
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PhysRevB.99.214302.pdf
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2019
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© American Physical Society

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https://arxiv.org/abs/1905.04508 (Preprint)
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https://dx.doi.org/10.1103/PhysRevB.99.214302 (Verlagsversion)
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 Urheber:
Sato, S.1, 2, Autor           
McIver, J. W.3, Autor           
Nuske, M.4, Autor
Tang, P.2, Autor           
Jotzu, G.3, Autor           
Schulte, B.3, Autor           
Hübener, H.2, Autor           
de Giovannini, U.2, Autor           
Mathey, L.4, 5, Autor
Sentef, M. A.6, Autor           
Cavalleri, A.3, Autor           
Rubio, A.2, 7, Autor           
Affiliations:
1Center for Computational Sciences, University of Tsukuba, ou_persistent22              
2Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              
3Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938293              
4Zentrum für Optische Quantentechnologien and Institut für Laserphysik, Universität Hamburg, ou_persistent22              
5The Hamburg Centre for Ultrafast Imaging, University of Hamburg, ou_persistent22              
6Theoretical Description of Pump-Probe Spectroscopies in Solids, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_3012828              
7Center for Computational Quantum Physics (CCQ), Flatiron Institute, ou_persistent22              

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 Zusammenfassung: We employ a quantum Liouville equation with relaxation to model the recently observed anomalous Hall effect in graphene irradiated by an ultrafast pulse of circularly polarized light. In the weak-field regime, we demonstrate that the Hall effect originates from an asymmetric population of photocarriers in the Dirac bands. By contrast, in the strong-field regime, the system is driven into a nonequilibrium steady state that is well described by topologically nontrivial Floquet-Bloch bands. Here, the anomalous Hall current originates from the combination of a population imbalance in these dressed bands together with a smaller anomalous velocity contribution arising from their Berry curvature. This robust and general finding enables the simulation of electrical transport from light-induced Floquet-Bloch bands in an experimentally relevant parameter regime and creates a pathway to designing ultrafast quantum devices with Floquet-engineered transport properties.

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Sprache(n): eng - English
 Datum: 2019-01-202019-06-102019-06
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: arXiv: 1905.04508
DOI: 10.1103/PhysRevB.99.214302
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Projektname : -
Grant ID : 793609
Förderprogramm : Horizon 2020 (H2020)
Förderorganisation : European Commission (EC)
Projektname : This work was supported by the European Research Council (ERC-2015-AdG694097) and the Deutsche Forschungsgemeinschaft through the SFB 925. The Flatiron Institute is a division of the Simons Foundation. S.A.S. gratefully acknowledges the fellowship from the Alexander von Humboldt Foundation. M.A.S. acknowledges financial support by the DFG through the Emmy Noether program (SE 2558/2-1). P.T. acknowledges the received funding from the European Unions Horizon 2020 research and innovation program under the Marie Sklodowska-Curie Grant Agreement No 793609. M.N. acknowledges support from Stiftung der Deutschen Wirtschaft. L.M., A.R., and A.C. acknowledge support from the Cluster of Excellence Advanced Imaging of Matter (AIM).
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Titel: Physical Review B
  Kurztitel : Phys. Rev. B
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Woodbury, NY : American Physical Society
Seiten: - Band / Heft: 99 (21) Artikelnummer: 214302 Start- / Endseite: - Identifikator: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008