Ultrafast quenching of electron-boson interaction and superconducting gap in a cuprate superconductor

Abstract

Ultrafast spectroscopy is an emerging technique with great promise in the study of quantum materials, as it makes it possible to track similarities and correlations that are not evident near equilibrium. Thus far, however, the way in which these processes modify the electron self-energy---a fundamental quantity describing many-body interactions in a material---has been little discussed. Here we use time- and angle-resolved photoemission to directly measure the self-energy's ultrafast response to near-infrared photoexcitation in high-temperature cuprate superconductor. Below the superconductor's critical temperature, ultrafast excitations trigger a synchronous decrease of electron self-energy and superconducting gap, culminating in a saturation in the weakening of electron-boson coupling when the superconducting gap is fully quenched. In contrast, electron-boson coupling is unresponsive to ultrafast excitations above the superconductor's critical temperature and in the metallic state of a related material. These findings open a new pathway for studying transient self-energy and correlation effects in solids.

arXiv comment24 pages, 11 figures

References in corpus (30)

• Evidence for ubiquitous strong electron-phonon coupling in high-temperature superconductors
• Optically enhanced coherent transport in YBa2Cu3O6.5 by ultrafast redistribution of interlayer coupling
• On the Doping and Temperature Dependence of the Mass Enhancement Observed in the Cuprate Bi2212
• Renormalization of spectral lineshape and dispersion below Tc in Bi2Sr2CaCu2O8+d
• Phenomenology of Photoemission Lineshapes of High Tc Superconductors
• Many-body Effects in Angle-resolved Photoemission: Quasiparticle Energy and Lifetime of a Mo(110) Surface State
• An unusual isotope effect in a high-transition-temperature superconductor
• Evidence for an energy scale for quasiparticle dispersion in Bi_2Sr_2CaCu_2O_8
• The superconducting gap Δ_{c}, the pseudogap Δ_{p} and pair fluctuations above Tc in overdoped YCaBaCuO from femtosecond time-domain spectroscopy
• Tracking Cooper Pairs in a Cuprate Superconductor by Ultrafast Angle-Resolved Photoemission
• Dynamics of photoinduced Charge Density Wave-metal phase transition in K0.3MoO3
• Nodal quasiparticle meltdown in ultra-high resolution pump-probe angle-resolved photoemission
• Examining electron-boson coupling using time-resolved spectroscopy
• Momentum-Resolved Ultrafast Electron Dynamics in Superconducting Bi2Sr2CaCu2O8+delta
• Single-quasiparticle stability and quasiparticle-pair decay in YBa2Cu3O6.5 (Ortho II)
• Identification of a New Form of Electron Coupling in Bi2Sr2CaCu2O8 Superconductor by Laser-Based Angle-Resolved Photoemission
• Effect of an Electron-phonon Interaction on the One-electron Spectral Weight of a d-wave Superconductor
• Direct Role of Structural Dynamics in Electron-Lattice Coupling of Superconducting Cuprates
• A new collective mode in YBCO observed by time-domain reflectometry
• Time- and Momentum-resolved Gap Dynamics in Bi2Sr2CaCu2O8+delta
• Evidence of a photoinduced non-thermal superconducting-to-normal-state phase transition in overdoped Bi${}_2$Sr${}_2$Ca${}_{0.92}$Y${}_{0.08}$Cu${}_2$O${}_{8+\delta }$
• Angle-resolved photoemission spectroscopy of electron-doped cuprate superconductors: Isotropic electron-phonon coupling
• Competition between the Pseudogap and Superconducting States of Bi${}_2$Sr${}_2$Ca${}_{0.92}$Y${}_{0.08}$Cu${}_2$O${}_{8+\delta }$ Single Crystals Revealed by Ultrafast Broadband Optical Reflectivity
• Signatures of superconductivity and pseudogap formation in non-equilibrium nodal quasiparticles revealed by ultrafast angle-resolved photoemission
• Superconductivity-Induced Self-Energy Evolution of the Nodal Electron of Optimally-Doped Bi2212
• Coexistence of Two Sharp-Mode Couplings and Their Unusual Momentum Dependence in the Superconducting State of Bi2Sr2CaCu2O8+d Superconductor Revealed by Laser-Based Angle-Resolved Photoemission
• ARPES kink is a "smoking gun" for the theory of high-Tc superconductors: dominance of the electron-phonon interaction with forward scattering peak
• Ultrafast filling of an electronic pseudogap in an incommensurate crystal
• Quantitative Determination of Eliashberg Function and Evidence of Strong Electron Coupling with Multiple Phonon Modes in Heavily Over doped (Bi,Pb)2Sr2CuO6
• Large momentum-dependence of the main dispersion "kink" in the high-Tc superconductor Bi2Sr2CaCu2O8+δ

Cited by in corpus (35)

• Electronic structure of quantum materials studied by angle-resolved photoemission spectroscopy
• Ultrafast optical spectroscopy of strongly correlated materials and high-temperature superconductors: a non-equilibrium approach
• Angle-resolved photoemission spectroscopy and its application to topological materials
• Time- and Angle-Resolved Photoemission Studies of Quantum Materials
• Angle-resolved photoemission spectroscopy
• New Developments in Laser-Based Photoemission Spectroscopy and its Scientific Applications: a Key Issues Review
• Direct observation of Higgs mode oscillations in the pump-probe photoemission spectra of electron-phonon mediated superconductors
• Ultrafast Angle-Resolved Photoemission Spectroscopy of Quantum Materials
• Energy dissipation in the time domain governed by bosons in a correlated material
• Evidence for hidden fermion that triggers high-temperature superconductivity in cuprates
• Time-resolved photoemission apparatus achieving sub-20-meV energy resolution and high stability
• A setup for extreme-ultraviolet ultrafast angle-resolved photoelectron spectroscopy at 50-kHz repetition rate
• Inequivalence of Single-Particle and Population Lifetimes in a Cuprate Superconductor
• Review of the theoretical description of time-resolved angle-resolved photoemission spectroscopy in electron-phonon mediated superconductors
• Mode-selective coupling of coherent phonons to the Bi2212 electronic band structure
• A time- and angle-resolved photoemission spectroscopy with probe photon energy up to 6.7 eV
• Self-energy dynamics and mode-specific phonon threshold effect in a Kekulé-ordered graphene
• Advancing time- and angle-resolved photoemission spectroscopy: The role of ultrafast laser development
• Time-resolved ARPES on cuprates: Tracking the low-energy electrodynamics in the time domain
• Influence of Optically Quenched Superconductivity on Quasiparticle Relaxation Rates in Bi2Sr2CaCu2O8+delta
• The effects of non-linear electron-phonon interactions on superconductivity and charge-density-wave correlations
• Ultrafast creation of a light induced semimetallic state in strongly excited 1T-TiSe${}_2$
• Clocking the Onset of Bilayer Coherence in a High-${\mathrm{T}}_{\mathrm{C}}$ Cuprate
• 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${}_{8+\delta }$
• Periodically driven interacting electrons in 1D: a many-body Floquet approach
• Hot electron relaxation in metals within the Götze-Wölfle memory function formalism
• Exact solution of two simple non-equilibrium electron-phonon and electron-electron coupled systems: the atomic limit of the Holstein-Hubbard model and the generalized Hatsugai-Komoto model
• Ultrafast dynamics of electron-phonon coupling in a metal
• Ubiquitous suppression of the nodal coherent spectral weight in Bi-based cuprates
• Kondo $s$-$d$ exchange in the CuO${}_2$ plane as the long sought interaction determining $T_c$ in cuprates
• Nonequilibrium spectral moment sum rules of the Holstein-Hubbard model
• Catalogue of phonon modes in several cuprate high-temperature superconductors from density functional theory
• Constant Matrix Element Approximation to Time-Resolved Angle-Resolved Photoemission Spectroscopy