Quasi-particles ultrafastly releasing kink bosons to form Fermi arcs in a cuprate superconductor
arXiv:1511.08576 · doi:10.1038/srep18747
Abstract
In a conventional framework, superconductivity is lost at a critical temperature (T_c) because, at higher temperatures, gluing bosons can no longer bind two electrons into a Cooper pair. In high-T_c cuprates, it is still unknown how superconductivity vanishes at T_c. We provide evidence that the so-called <~70-meV kink bosons that dress the quasi-particle excitations are playing a key role in the loss of superconductivity in a cuprate. We irradiated a 170-fs laser pulse on Bi2Sr2CaCu2O8+δand monitored the responses of the superconducting gap and dressed quasi-particles by time- and angle-resolved photoemission spectroscopy. We observe an ultrafast loss of superconducting gap near the d-wave node, or light-induced Fermi arcs, which is accompanied by spectral broadenings and weight redistributions occurring within the kink binding energy. We discuss that the underlying mechanism of the spectral broadening that induce the Fermi arc is the undressing of quasi-particles from the kink bosons. The loss mechanism is beyond the conventional framework, and can accept the unconventional phenomena such as the signatures of Cooper pairs remaining at temperatures above T_c.
References in corpus (18)
- Visualizing pair formation on the atomic scale in the high-Tc superconductor Bi2Sr2CaCu2O8+d
- Energy gaps in high-transition temperature cuprate superconductors
- Strength of the Spin-Fluctuation-Mediated Pairing Interaction in a High-Temperature Superconductor
- Tracking Cooper Pairs in a Cuprate Superconductor by Ultrafast Angle-Resolved Photoemission
- Electron-phonon coupling and electron self-energy in electron-doped graphene: calculation of angular resolved photoemission spectra
- Point nodes persisting far beyond Tc in Bi2212
- Direct spectroscopic evidence for phase competition between the pseudogap and superconductivity in BiSrCaCuO
- The Origin and Non-quasiparticle Nature of Fermi Arcs in BiSrCaCuO
- Identification of a New Form of Electron Coupling in Bi2Sr2CaCu2O8 Superconductor by Laser-Based Angle-Resolved Photoemission
- Two-color spin noise spectroscopy: Using spin fluctuation correlations to reveal homogeneous linewidths within quantum dot ensembles
- Time-resolved photoemission apparatus achieving sub-20-meV energy resolution and high stability
- Inequivalence of Single-Particle and Population Lifetimes in a Cuprate Superconductor
- Time- and Momentum-resolved Gap Dynamics in Bi2Sr2CaCu2O8+delta
- Pre-pairing and the "Filling" Gap in the Cuprates From the Tomographic Density of States
- Nodal Quasiparticle Lifetimes in Cuprate Superconductors
- Cumulant expansion for phonon contributions to the electron spectral function
- Superconductivity-Induced Self-Energy Evolution of the Nodal Electron of Optimally-Doped Bi2212
- Low-energy kink in the nodal dispersion of copper-oxide superconductors: Insights from Dynamical Mean Field Theory
Cited by in corpus (17)
- Time- and Angle-Resolved Photoemission Studies of Quantum Materials
- Ultrafast Angle-Resolved Photoemission Spectroscopy of Quantum Materials
- Collapse of superconductivity in cuprates via ultrafast quenching of phase coherence
- Tuning time and energy resolution in time-resolved photoemission spectroscopy with nonlinear crystals
- Review of the theoretical description of time-resolved angle-resolved photoemission spectroscopy in electron-phonon mediated superconductors
- 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
- Self-energy dynamics and mode-specific phonon threshold effect in a Kekulé-ordered graphene
- 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 nematic-orbital excitation in FeSe
- High repetition pump-and-probe photoemission spectroscopy based on a compact fiber laser system
- Relationship between Population Dynamics and the Self-Energy in Driven Non-Equilibrium Systems
- Interplay of superconductivity and bosonic coupling in the peak-dip-hump structure of BiSrCaCuO
- Photoinduced filling of near nodal gap in BiSrCaCuO
- Momentum-dependent relaxation dynamics of the doped repulsive Hubbard model
- Ultrafast Raman probe of the photoinduced superconducting to normal state transition in the cuprate BiSrCaCuO