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  Ultrafast dynamical Lifshitz transition

Beaulieu, S., Dong, S., Tancogne-Dejean, N., Dendzik, M. R., 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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The Authors

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 Urheber:
Beaulieu, Samuel1, Autor           
Dong, Shuo1, Autor           
Tancogne-Dejean, Nicolas2, Autor
Dendzik, Maciej Ramon1, 3, Autor           
Pincelli, Tommaso1, Autor           
Maklar, Julian1, Autor           
Xian, R. Patrick1, Autor           
Sentef, Michael A.2, Autor
Wolf, Martin1, Autor           
Rubio, Angel2, 4, Autor
Rettig, Laurenz1, Autor           
Ernstorfer, Ralph1, Autor           
Affiliations:
1Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546              
2Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, Luruper Chaussee 149, Geb. 99 (CFEL), 22761 Hamburg, DE, ou_1938284              
3Department of Applied Physics, KTH Royal Institute of Technology, Electrum 229, SE-16440, Stockholm, Kista, Sweden, ou_persistent22              
4Center for Computational Quantum Physics (CCQ), The Flatiron Institute, 162 Fifth Avenue, New York NY 10010, ou_persistent22              

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Schlagwörter: Condensed Matter, Strongly Correlated Electrons, cond-mat.str-el, Condensed Matter, Materials Science, cond-mat.mtrl-sci
 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 and using different types of static external perturbations such as strain, doping, pressure and temperature, a non-equilibrium route toward ultrafast and transient 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 Weyl semimetal Td-MoTe2. We demonstrate that this non-equilibrium topological electronic transition finds its microscopic origin in the dynamical modification of the effective electronic correlations. These results shed light on a novel ultrafast and all-optical scheme for controlling the Fermi surface topology in correlated quantum materials.

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Sprache(n): eng - English
 Datum: 2020-03-092020-07-242021-03-042021-04-21
 Publikationsstatus: Online veröffentlicht
 Seiten: 7
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Art des Abschluß: -

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Projektinformation

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Projektname : FLATLAND - Electron-lattice-spin correlations and many-body phenomena in 2D semiconductors and related heterostructures
Grant ID : 682843
Förderprogramm : Horizon 2020 (H2020)
Förderorganisation : European Commission (EC)
Projektname : OPTOlogic - Optical Topologic Logic
Grant ID : 899794
Förderprogramm : Horizon 2020 (H2020)
Förderorganisation : European Commission (EC)

Quelle 1

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Titel: Science Advances
  Andere : Sci. Adv.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Washington : AAAS
Seiten: 7 Band / Heft: 7 (17) Artikelnummer: eabd9275 Start- / Endseite: - Identifikator: ISSN: 2375-2548
CoNE: https://pure.mpg.de/cone/journals/resource/2375-2548