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Ultrafast Raman thermometry in driven YBa2Cu3O6.48

MPG-Autoren
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Chou,  T.-H.
International Max Planck Research School for Ultrafast Imaging & Structural Dynamics (IMPRS-UFAST), Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

Först,  M.
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

Fechner,  M.
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

Henstridge,  M.
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
SLAC National Accelerator Laboratory;

Roy,  S.
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

Buzzi,  M.
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

Nicoletti,  D.
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

Cavalleri,  A.
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Department of Physics, Clarendon Laboratory, University of Oxford;

Externe Ressourcen

https://arxiv.org/abs/2310.00128
(Preprint)

https://doi.org/10.1103/PhysRevB.109.195141
(Verlagsversion)

Volltexte (beschränkter Zugriff)
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Volltexte (frei zugänglich)

PhysRevB.109.195141.pdf
(Verlagsversion), 2MB

Ergänzendes Material (frei zugänglich)

Chou_et_al_Supplemental_Material.pdf
(Ergänzendes Material), 2MB

Zitation

Chou, T.-H., Först, M., Fechner, M., Henstridge, M., Roy, S., Buzzi, M., et al. (2024). Ultrafast Raman thermometry in driven YBa2Cu3O6.48. Physical Review B, 109(19): 195141. doi:10.1103/PhysRevB.109.195141.


Zitierlink: https://hdl.handle.net/21.11116/0000-000F-4544-7
Zusammenfassung
Signatures of photoinduced superconductivity have been reported in cuprate materials subjected to a coherent phonon drive. A “cold” superfluid was extracted from the transient Terahertz conductivity and was seen to coexist with “hot” uncondensed quasiparticles, a hallmark of a driven-dissipative system of which the interplay between coherent and incoherent responses is not well understood. Here, time resolved spontaneous Raman scattering was used to probe the lattice temperature in the photoinduced superconducting state of YBa2Cu3O6.48. An increase in lattice temperature of up to 140 K was observed by measuring the time dependent Raman scattering intensity of an undriven “spectator” phonon mode. This value is consistent with the estimated increase in quasiparticle temperature measured under the same excitation conditions. These temperature changes provide quantitative information on the nature of the driven state and its decay, and may suggest a strategy to optimize this effect.