Ionization Pathway Interference in Photoionization Time Delays in Molecules

Mukherjee, D and Harbola, U and Mukamel, S (2024) Ionization Pathway Interference in Photoionization Time Delays in Molecules. In: Journal of Physical Chemistry Letters, 15 (14). pp. 3866-3870.

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Abstract

The photoionization time-delay in linear conjugated molecules is computed using the Wigner scattering approach. We find that, in general, there are two additive contributions to the ionization time-delays. One originates from interferences between various ionization pathways that belong to different cationic eigenstates, while the other is due to time delays associated with each pathway and originates due to electron-electron correlations in the molecule. The former contribution scales up rapidly with the conjugation length, leading to larger time delays, as observed in recent experiments, while the latter is much less sensitive to the molecular conjugation. © 2024 American Chemical Society.

Item Type:	Journal Article
Publication:	Journal of Physical Chemistry Letters
Publisher:	American Chemical Society
Additional Information:	The copyright for this article belongs to American Chemical Society.
Keywords:	Electron correlations; Molecules; Photoionization, Cationics; Conjugated molecules; Conjugation length; Eigenstates; Electron-electron correlation; Ionization pathways; Large time delay; Molecular conjugation; Scale-up; Time-delays, Time delay, article; conjugation; controlled study; female; ionization; signal transduction
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	10 Jul 2024 07:20
Last Modified:	10 Jul 2024 07:20
URI:	http://eprints.iisc.ac.in/id/eprint/84784

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