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Ultrafast dynamics of vibronically dressed core-excitons in graphite: a femtosecond RIXS perspective

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arxiv 2504.12708 v1 pith:PYUB46W5 submitted 2025-04-17 cond-mat.mtrl-sci

Marco Malvestuto , Beatrice Volpato , Elena Babici , Richa Bhardwaj , Antonio Caretta , Simone Laterza , Fulvio Parmigiani , Michele Manfredda
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Alberto Simoncig Marco Zangrando Alexander Demidovich Peter Susnjar Enrico Massimiliano Allaria Alexander Darius Brynes David Garzella Luca Giannessi Primoz Rebernik Filippo Sottocorona Dino Novko
This is my paper · ORCID
classification cond-mat.mtrl-sci
keywords ultrafastdynamicscoredressedexcitonsfemtosecondgraphiterixs
verification ladder T0 review T1 audit T2 compute T3 formal
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This study demonstrates one of the first implementations of time-resolved resonant inelastic X-ray scattering (tr-RIXS), marking a seminal extension of RIXS spectroscopy into the ultrafast time domain. By investigating the ultrafast dynamics of vibronically dressed core excitons in graphite using femtosecond X-ray pulses from a Free Electron Laser, we reveal previously inaccessible insights into the transient coupling between core excitons and specific optical phonon modes. Our approach establishes tr-RIXS as a powerful, transformative tool capable of elucidating the intricate interplay between electronic and lattice dynamics, opening new avenues in ultrafast materials research.

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