Ultrafast nanoscopy of an excitonic insulator-metal transition in twisted bilayer WSe2

Martin Zizlsperger,Thomas Siday,Fabian Sandner,Samuel Brem,Raul Perea-Causin,Felix Schiegl,Svenja Nerreter,Markus Plankl,Philipp Merkl,Fabian Mooshammer,Markus A. Huber,Ermin Malic,Rupert Huber

Conference on Lasers and Electro-Optics（2022）

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摘要

Many-body interactions between excitons in a transition-metal dichalcogenide bilayer drive a transition into an electron-hole liquid at high densities. Using ultrafast polarization nanoscopy, we unveil spatiotemporal dynamics of this continuous Mott transition on the nanoscale.

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