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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 (Publisher version), 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 (Supplementary 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 (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: -
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 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)

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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