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Theory of resonantly enhanced photo-induced superconductivity

MPG-Autoren
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Eckhardt,  C.
Theoretical Description of Pump-Probe Spectroscopies in Solids, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free-Electron Laser Science (CFEL);
Institut für Theorie der Statistischen Physik, RWTH Aachen University and JARA-Fundamentals of Future Information Technology;

/persons/resource/persons245033

Kennes,  D. M.
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free-Electron Laser Science (CFEL);
Institut für Theorie der Statistischen Physik, RWTH Aachen University and JARA-Fundamentals of Future Information Technology;

/persons/resource/persons182604

Sentef,  M. A.
Theoretical Description of Pump-Probe Spectroscopies in Solids, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free-Electron Laser Science (CFEL);
Institute for Theoretical Physics and Bremen Center for Computational Materials Science, University of Bremen;
H H Wills Physics Laboratory, University of Bristol;

/persons/resource/persons280912

Michael,  M.
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free-Electron Laser Science (CFEL);

Externe Ressourcen

https://arxiv.org/abs/2303.02176
(Preprint)

https://doi.org/10.1038/s41467-024-46632-x
(Verlagsversion)

Volltexte (beschränkter Zugriff)
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Volltexte (frei zugänglich)

s41467-024-46632-x.pdf
(Verlagsversion), 961KB

Ergänzendes Material (frei zugänglich)

41467_2024_46632_MOESM1_ESM.pdf
(Ergänzendes Material), 282KB

Zitation

Eckhardt, C., Chattopadhyay, S., Kennes, D. M., Demler, E. A., Sentef, M. A., & Michael, M. (2024). Theory of resonantly enhanced photo-induced superconductivity. Nature Communications, 15(1): 2300. doi:10.1038/s41467-024-46632-x.


Zitierlink: https://hdl.handle.net/21.11116/0000-000C-BA23-B
Zusammenfassung
Optical driving of materials has emerged as a versatile tool to control their properties, with photo-induced superconductivity being among the most fascinating examples. In this work, we show that light or lattice vibrations coupled to an electronic interband transition naturally give rise to electron-electron attraction that may be enhanced when the underlying boson is driven into a non-thermal state. We find this phenomenon to be resonantly amplified when tuning the boson’s frequency close to the energy difference between the two electronic bands. This result offers a simple microscopic mechanism for photo-induced superconductivity and provides a recipe for designing new platforms in which light-induced superconductivity can be realized. We discuss two-dimensional heterostructures as a potential test ground for light-induced superconductivity concretely proposing a setup consisting of a graphene-hBN-SrTiO3 heterostructure, for which we estimate a superconducting Tc that may be achieved upon driving the system.