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Ultrafast dynamical Lifshitz transition
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- Beaulieu, Samuel (författare)
- Max Planck Gesell, Fritz Haber Inst, Faradayweg 4-6, D-14195 Berlin, Germany.;Univ Bordeaux, CNRS, UMR5107, CELIA,CEA, F-33405 Talence, France.
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- Dong, Shuo (författare)
- Max Planck Gesell, Fritz Haber Inst, Faradayweg 4-6, D-14195 Berlin, Germany.
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- Tancogne-Dejean, Nicolas (författare)
- Max Planck Inst Struct & Dynam Matter, Luruper Chaussee 149, D-22761 Hamburg, Germany.
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- Max Planck Gesell, Fritz Haber Inst, Faradayweg 4-6, D-14195 Berlin, Germany;Univ Bordeaux, CNRS, UMR5107, CELIA,CEA, F-33405 Talence, France. Max Planck Gesell, Fritz Haber Inst, Faradayweg 4-6, D-14195 Berlin, Germany. (creator_code:org_t)
- American Association for the Advancement of Science (AAAS), 2021
- 2021
- Engelska.
- Ingår i: Science Advances. - : American Association for the Advancement of Science (AAAS). - 2375-2548. ; 7:17
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- 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 T-d-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.Y
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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- Beaulieu, Samuel
- Dong, Shuo
- Tancogne-Dejean, ...
- Dendzik, Maciej
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- Maklar, Julian
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- Xian, R. Patrick
- Sentef, Michael ...
- Wolf, Martin
- Rubio, Angel
- Rettig, Laurenz
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