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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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Item Permalink: https://hdl.handle.net/21.11116/0000-0008-603B-A Version Permalink: https://hdl.handle.net/21.11116/0000-000B-C9D4-3
Genre: Journal Article

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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 (Publisher version)
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https://arxiv.org/abs/2003.04059 (Preprint)
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https://dx.doi.org/10.5281/zenodo.4632480 (Supplementary material)
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Experimental photoemission data used for the presented analysis
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 Creators:
Beaulieu, S.1, Author
Dong, S.1, Author
Tancogne-Dejean, N.2, Author           
Dendzik, M.1, 3, Author
Pincelli, T.1, Author
Maklar, J.1, Author
Xian, R. P.1, Author
Sentef, M. A.4, Author           
Wolf, M.1, Author
Rubio, A.2, 5, Author           
Rettig, L.1, Author
Ernstorfer, R.1, Author
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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 Abstract: 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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Language(s): eng - English
 Dates: 2020-07-242021-03-042021-04-21
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1126/sciadv.abd9275
arXiv: 2003.04059
 Degree: -

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Project name : -
Grant ID : 682843
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)
Project name : -
Grant ID : 694097
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)
Project name : -
Grant ID : 899794
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)
Project name : 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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Title: Science Advances
  Other : Sci. Adv.
Source Genre: Journal
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Publ. Info: Washington : AAAS
Pages: - Volume / Issue: 7 (17) Sequence Number: eabd9275 Start / End Page: - Identifier: ISSN: 2375-2548
CoNE: https://pure.mpg.de/cone/journals/resource/2375-2548