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Theory of plasmon spectroscopy with the quantum twisting microscope

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arxiv 2506.05485 v1 pith:X5O5ZBWX submitted 2025-06-05 cond-mat.str-el cond-mat.mes-hall

classification cond-mat.str-elcond-mat.mes-hall
keywords microscopeplasmonquantumtunnelingtwistinganglespectroscopybias
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We consider plasmon-assisted electron tunneling in a quantum twisting microscope (QTM). The dependence of the differential conductance on the two control parameters of the QTM -- the twist angle and bias -- reveals the plasmon spectrum as well as the strength of plasmon-electron interactions in the sample. We perform microscopic calculations for twisted bilayer graphene (TBG), to predict the plasmon features in the tunneling spectra of TBG close to the magic angle for different screening environments. Our work establishes a general framework for inelastic tunneling spectroscopy of collective electronic excitations using the quantum twisting microscope.

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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Revealing electron-electron interactions in graphene at room temperature with the quantum twisting microscope

    cond-mat.mes-hall 2025-07 conditional novelty 6.0 of 10

    Room-temperature quantum twisting microscopy of graphene/hBN/graphene shows split nesting and nonlinear onset features consistent with electron-electron renormalization of the Dirac dispersion with fitted α=0.32.

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