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Laser control of electronic exchange interaction within a molecule

Electronic interactions play a fundamental role in atoms, molecular structure and reactivity. We introduce a general concept to control the effective electronic exchange interaction with intense laser fields via coupling to excited states. As an experimental proof of principle, we study the SF6 mole...

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Main Authors: Rupprecht, Patrick (Author) , Aufleger, Lennart (Author) , Heinze, Simon (Author) , Magunia, Alexander (Author) , Ding, Thomas (Author) , Rebholz, Marc (Author) , Amberg, Stefano (Author) , Mollov, Nikola (Author) , Henrich, Felix (Author) , Haverkort, Maurits W. (Author) , Ott, Christian (Author) , Pfeifer, Thomas (Author)
Format: Article (Journal)
Language:English
Published: 11 April 2022
In: Physical review letters
Year: 2022, Volume: 128, Issue: 15, Pages: 1-6
ISSN:1079-7114
DOI:10.1103/PhysRevLett.128.153001
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.128.153001
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.128.153001
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Author Notes:Patrick Rupprecht, Lennart Aufleger, Simon Heinze, Alexander Magunia, Thomas Ding, Marc Rebholz, Stefano Amberg, Nikola Mollov, Felix Henrich, Maurits W. Haverkort, Christian Ott, and Thomas Pfeifer
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Summary:Electronic interactions play a fundamental role in atoms, molecular structure and reactivity. We introduce a general concept to control the effective electronic exchange interaction with intense laser fields via coupling to excited states. As an experimental proof of principle, we study the SF6 molecule using a combination of soft x-ray and infrared (IR) laser pulses. Increasing the IR intensity increases the effective exchange energy of the core hole with the excited electron by 50%, as observed by a characteristic spin-orbit branching ratio change. This work demonstrates altering electronic interactions by targeting many-particle quantum properties.
Item Description:Gesehen am 18.05.2022
Physical Description:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.128.153001

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