Influence of Optically Quenched Superconductivity on Quasiparticle Relaxation Rates in Bi2Sr2CaCu2O8+delta

Abstract

We use time- and angle-resolved photoemission to measure quasiparticle relaxation dynamics across a laser-induced superconducting phase transition in Bi2Sr2CaCu2O8+delta. Whereas low-fluence measurements reveal picosecond dynamics, sharp femtosecond dynamics emerge at higher fluence. Analyses of data as a function of energy, momentum, and doping indicate that the closure of the near-nodal gap and disruption of macroscopic coherence are primary mechanisms driving this onset. The results demonstrate the important influence of transient electronic structure on relaxation dynamics, which is relevant for developing an understanding of nonequilibrium phase transitions.

6 pages, 4 figures

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Cited by in corpus (13)

• Time- and Angle-Resolved Photoemission Studies of Quantum Materials
• Ultrafast Angle-Resolved Photoemission Spectroscopy of Quantum Materials
• Dynamics of correlation-frozen antinodal quasiparticles in superconducting cuprates
• Revealing the ultrafast light-to-matter energy conversion before heat diffusion in a layered Dirac semimetal
• Amplitude mode oscillations in pump-probe photoemission spectra from a d-wave superconductor
• Time-resolved ARPES on cuprates: Tracking the low-energy electrodynamics in the time domain
• Ultrafast creation of a light induced semimetallic state in strongly excited 1T-TiSe${}_2$
• Dynamics of the superconducting order parameter through ultrafast normal-to-superconducting phase transition in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ from multi-pulse polarization-resolved transient optical reflectivity
• Nonequilibrium Electron Dynamics in a Solid with a Changing Nodal Excitation Gap
• Photoinduced changes of the chemical potential in superconducting Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$
• Interplay of superconductivity and bosonic coupling in the peak-dip-hump structure of Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$
• Efficient Prediction of Time- and Angle-Resolved Photoemission Spectroscopy Measurements on a Non-Equilibrium BCS Superconductor
• Photoinduced filling of near nodal gap in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$