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DTSTART;TZID=Europe/Paris:20260319T140000
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DTSTAMP:20260313T132503Z
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UID:29703-1773928800-1773939600@www.chimieparistech.psl.eu
SUMMARY:Séminaire Programme Gradué Chimie PSL
DESCRIPTION:Thursday March 19 at 2:00 pm (Paris time)\,Room Holweck\, building C\, 1st floor\, 10 rue Vauquelin\, ESPCI\, at LPEM in hybrid format:The power of flatness: an ab initio guide to tunable flat bands in 2D materials\n\n\n\n\nby Ludovica Zullo\, Wuerzburg University.Abstract: In condensed matter\, flatness is anything but boring: when a band’s energy dispersion becomes nearly flat\, electrons lose their kinetic identity and correlations take over\, giving rise to exotic physics. In this talk\, I will show how to design two-dimensional materials in which flat bands may be engineered and tuned through experimentally accessible « control knobs » including strain\, dimensionality interplay\, twisting\, and heterostructure stacking.I will show how to manipulate different platforms to unlock the power of flat bands physics: for example magnetic ordering in strained kagome lattices [1]\, emergent superconductivity in otherwise non-superconducting transition-metal dichalcogenides whitin incommensurate heterostructures [2]\, twist-tunable spin textures [3]\, and the delicate interplay between one-dimensional charge-density waves and two-dimensional interactions in rectangular lattices [4].  These examples illustrate how controlling flatness via ab initio predictions transforms materials into laboratories for emergent quantum phenomena for future devices applications.[1] G. Cantele\, F. Conte\, L. Zullo\, D. Ninno\, Physical Review B\, 106\, 085418 (2022).[2] L. Zullo\, G. Marini\, T. Cren\, M. Calandra\, Nano Lett. 2023\, 23\, 14\, 6658-6663 (2023). [3] L. Zullo\, D. Ninno\, G. Cantele\, Phys. Rev. B 110\, 165411 (2024).[4] X. Luo*\, L. Zullo*\, S. Patel\, D. Oh\, Q. Song\, A.K. Kundu\, A. Rajapitamahuni\, E. Vescovo\, N. Olszowska\, R. Kurleto\, D. Wutke\, G. Sangiovanni\, R. Comin\, arXiv preprint arXiv:2510.15080\, (2025).\n\nZoom link:https://espci.zoom.us/j/81353094804?pwd=MBzSNeGzHo5h86b0NWZ9nnkTZFMRix.1\n\n\n\n\nID: 813 5309 4804Passcode: E.Wigner
URL:https://www.chimieparistech.psl.eu/evenement-agenda/seminaire-programme-gradue-chimie-psl-187/
LOCATION:évènement hybride
CATEGORIES:Séminaire
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