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  Ultrafast dynamical Lifshitz transition

Beaulieu, S., Dong, S., Tancogne-Dejean, N., Dendzik, M., Pincelli, T., Maklar, J., et al. (2021). Ultrafast dynamical Lifshitz transition. Science Advances, 7(17): eabd9275. doi:10.1126/sciadv.abd9275.

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eabd9275.full-1.pdf (Verlagsversion), 2MB
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This is an open-access article distributed under the terms of the Creative Commons Attribution license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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© The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.
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abd9275_SM.pdf (Ergänzendes Material), 2MB
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Supplementary Material: Additional experimental data, Adiabatic Lifshitz transition, Nonequilibrium Fermi surface, Effect of dynamical U,Note on the role of dynamical populations, Band structure of 1T′-MoTe2, Figs. S1 to S6, References
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https://dx.doi.org/10.1126/sciadv.abd9275 (Verlagsversion)
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https://arxiv.org/abs/2003.04059 (Preprint)
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https://dx.doi.org/10.5281/zenodo.4632480 (Ergänzendes Material)
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Experimental photoemission data used for the presented analysis
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 Urheber:
Beaulieu, S.1, Autor
Dong, S.1, Autor
Tancogne-Dejean, N.2, Autor           
Dendzik, M.1, 3, Autor
Pincelli, T.1, Autor
Maklar, J.1, Autor
Xian, R. P.1, Autor
Sentef, M. A.4, Autor           
Wolf, M.1, Autor
Rubio, A.2, 5, Autor           
Rettig, L.1, Autor
Ernstorfer, R.1, Autor
Affiliations:
1Fritz Haber Institute of the Max Planck Society, ou_persistent22              
2Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              
3Department of Applied Physics, KTH Royal Institute of Technology, ou_persistent22              
4Theoretical Description of Pump-Probe Spectroscopies in Solids, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_3012828              
5Center for Computational Quantum Physics (CCQ), Flatiron Institute, ou_persistent22              

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 Zusammenfassung: Fermi surface is at the heart of our understanding of metals and strongly correlated many-body systems. An abrupt change in the Fermi surface topology, also called Lifshitz transition, can lead to the emergence of fascinating phenomena like colossal magnetoresistance and superconductivity. While Lifshitz transitions have been demonstrated for a broad range of materials by equilibrium tuning of macroscopic parameters such as strain, doping, pressure, and temperature, a nonequilibrium dynamical route toward ultrafast modification of the Fermi surface topology has not been experimentally demonstrated. Combining time-resolved multidimensional photoemission spectroscopy with state-of-the-art TDDFT+U simulations, we introduce a scheme for driving an ultrafast Lifshitz transition in the correlated type-II Weyl semimetal Td-MoTe2. We demonstrate that this nonequilibrium topological electronic transition finds its microscopic origin in the dynamical modification of the effective electronic correlations. These results shed light on a previously unexplored ultrafast scheme for controlling the Fermi surface topology in correlated quantum materials.

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Sprache(n): eng - English
 Datum: 2020-07-242021-03-042021-04-21
 Publikationsstatus: Online veröffentlicht
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1126/sciadv.abd9275
arXiv: 2003.04059
 Art des Abschluß: -

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Projektname : -
Grant ID : 682843
Förderprogramm : Horizon 2020 (H2020)
Förderorganisation : European Commission (EC)
Projektname : -
Grant ID : 694097
Förderprogramm : Horizon 2020 (H2020)
Förderorganisation : European Commission (EC)
Projektname : -
Grant ID : 899794
Förderprogramm : Horizon 2020 (H2020)
Förderorganisation : European Commission (EC)
Projektname : This work was funded by the Max Planck Society, the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program [grant nos. ERC-2015-CoG-682843, ERC-2015-AdG694097, and H2020-FETOPEN-2018-2019-2020-01 (OPTOLogic, grant agreement no. 899794)], the Grupos Consolidados (IT1249-19); the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) within the Emmy Noether program (grant nos. RE 3977/1 and SE 2558/2); the Cluster of Excellence “Advanced Imaging of Matter” (AIM), the SFB925 “Light-induced dynamics and control of correlated quantum systems”; the Collaborative Research Center/Transregio 227 “Ultrafast Spin Dynamics” (projects B07 and A09, project number 328545488); the FOR1700 project (project E5, project number 194370842); and the Priority Program SPP 2244 (project no. 443366970). The Flatiron Institute is a division of the Simons Foundation. T. P. acknowledges financial support from the Alexander von Humboldt Fellowship program of the Alexander von Humboldt Stiftung. S.B. acknowledges financial support from the NSERC-Banting Postdoctoral Fellowships Program.
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Titel: Science Advances
  Andere : Sci. Adv.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Washington : AAAS
Seiten: - Band / Heft: 7 (17) Artikelnummer: eabd9275 Start- / Endseite: - Identifikator: ISSN: 2375-2548
CoNE: https://pure.mpg.de/cone/journals/resource/2375-2548