Ultrafast renormalization of the onsite Coulomb repulsion in a cuprate superconductor

Abstract

Ultrafast lasers are an increasingly important tool to control and stabilize emergent phases in quantum materials. Among a variety of possible excitation protocols, a particularly intriguing route is the direct light-engineering of microscopic electronic parameters, such as the electron hopping and the local Coulomb repulsion (Hubbard $U$). In this work, we use time-resolved x-ray absorption spectroscopy to demonstrate the light-induced renormalization of the Hubbard $U$ in a cuprate superconductor, La${}_{1.905}$Ba${}_{0.095}$CuO${}_4$. We show that intense femtosecond laser pulses induce a substantial redshift of the upper Hubbard band, while leaving the Zhang-Rice singlet energy unaffected. By comparing the experimental data to time-dependent spectra of single- and three-band Hubbard models, we assign this effect to a $\sim 140$ meV reduction of the onsite Coulomb repulsion on the copper sites. Our demonstration of a dynamical Hubbard $U$ renormalization in a copper oxide paves the way to a novel strategy for the manipulation of superconductivity, magnetism, as well as to the realization of other long-range-ordered phases in light-driven quantum materials.

arXiv comment13 pages, 7 figures

References in corpus (74)

• Angle-resolved photoemission spectroscopy of the cuprate superconductors
• A Common Thread: the pairing interaction for the unconventional superconductors
• Resonant Inelastic X-ray Scattering Studies of Elementary Excitations
• Observation of Floquet-Bloch states on the surface of a topological insulator
• Spin Liquid Ground State of the $S=1/2$ Kagome Heisenberg Model
• Light-induced anomalous Hall effect in graphene
• Identifying Topological Order by Entanglement Entropy
• Quantum Magnetic Excitations from Stripes in Copper-Oxide Superconductors
• Nonlinear phononics: A new ultrafast route to lattice control
• Nonlinear lattice dynamics as a basis for enhanced superconductivity in YBa2Cu3O6.5
• Tunable Isolated Attosecond X-ray Pulses with Gigawatt Peak Power from a Free-Electron Laser
• Intense paramagnon excitations in a large family of high-temperature superconductors
• Optically enhanced coherent transport in YBa2Cu3O6.5 by ultrafast redistribution of interlayer coupling
• Selective scattering between Floquet-Bloch and Volkov states in a topological insulator
• Spatially modulated "Mottness" in La2-xBaxCuO4
• Gapless spin-liquid ground state in the $S=1/2$ kagome antiferromagnet
• Optically induced coherent transport far above Tc in underdoped YBa2Cu3O6+x
• Stripe order in superconducting La(2-x)Ba(x)CuO(4) for 0.095 <= x <= 0.155
• Band-selective Measurement of Electronic Dynamics in VO2 using Femtosecond Near Edge X-ray Absorption
• Theory of nonlinear phononics for coherent light-control of solids
• Observation of Elastic Doublon Decay in the Fermi-Hubbard Model
• Tracking Cooper Pairs in a Cuprate Superconductor by Ultrafast Angle-Resolved Photoemission
• Direct and Simultaneous Observation of Ultrafast Electron and Hole Dynamics in Germanium
• Chiral spin liquid phase of the triangular lattice Hubbard model: a density matrix renormalization group study
• Ultrafast modification of Hubbard $U$ in a strongly correlated material: ab initio high-harmonic generation in NiO
• Quantum interference between charge excitation paths in a solid state Mott insulator
• Effective spin model for the spin-liquid phase of the Hubbard model on the triangular lattice
• The Hubbard model on the triangular lattice: Spiral order and spin liquid
• Optically induced superconductivity in striped La2-xBaxCuO4 by polarization-selective excitation in the near infrared
• Lifetime of double occupancies in the Fermi-Hubbard model
• Scaling of the transition temperature of hole-doped cuprate superconductors with the charge-transfer energy
• Photoinduced $\eta$ Pairing in the Hubbard Model
• Snapshots of the retarded interaction of charge carriers with ultrafast fluctuations in cuprates
• Photo-molecular high temperature superconductivity
• Ultrafast charge recombination in photoexcited Mott-Hubbard insulator
• Ultrafast transient response and electron-phonon coupling in the iron-pnictide superconductor Ba(Fe(1-x)Co(x))2As2
• Ground state phase diagram of the triangular lattice Hubbard model by density matrix renormalization group method
• Direct Role of Structural Dynamics in Electron-Lattice Coupling of Superconducting Cuprates
• THz-Frequency Modulation of the Hubbard U in an Organic Mott Insulator
• Photo-enhanced metastable c-axis electrodynamics in stripe ordered cuprate La${}_{1.885}$Ba${}_{0.115}$CuO${}_4$
• Energy dissipation in the time domain governed by bosons in a correlated material
• Witnessing the formation and relaxation of massive quasi-particles in a strongly correlated electron system
• Characterizing the three-orbital Hubbard model with determinant quantum Monte Carlo
• Probing light-driven quantum materials with ultrafast resonant inelastic X-ray scattering
• Pressure dependent relaxation in the photo-excited Mott insulator ETF2TCNQ: Influence of hopping and correlations on quasiparticle recombination rates
• Relationship between the parent charge transfer gap and maximum transition temperature in cuprates
• Experimental Determination of Momentum-Resolved Electron-Phonon Coupling
• $\eta$--paired superconducting hidden phase in photodoped Mott insulators
• Collapse of superconductivity in cuprates via ultrafast quenching of phase coherence
• Theory of the electron relaxation in metals excited by an ultrashort optical pump
• Deconstructing the Hubbard Hamiltonian by Ultrafast Quantum Modulation Spectroscopy in Solid-state Mott Insulators
• Mixed regime of light-matter interaction revealed by phase sensitive measurements of the dynamical Franz-Keldysh effect
• Multi-band non-equilibrium GW+EDMFT formalism for correlated insulators
• All-optical nonequilibrium pathway to stabilizing magnetic Weyl semimetals in pyrochlore iridates
• Pairing in the Two-Dimensional Hubbard Model from Weak to Strong Coupling
• Dynamical order and superconductivity in a frustrated many-body system
• Enhancement of Local Pairing Correlations in Periodically Driven Mott Insulators
• Charge Recombination in Undoped Cuprates
• Ultrafast X-Ray Induced Changes of the Electronic and Magnetic Response of Solids Due to Valence Electron Redistribution
• Dynamics of correlation-frozen antinodal quasiparticles in superconducting cuprates
• Temperature-dependent electron-phonon coupling in La${}_{2-x}$Sr${}_x$CuO${}_4$ probed by femtosecond X-ray diffraction
• Doping Evolution of Oxygen K-edge X-ray Absorption Spectra in Cuprate Superconductors
• Renormalized perturbation theory at large expansion orders
• Ultrafast Transient Absorption Spectroscopy of the Charge-Transfer Insulator NiO: Beyond the Dynamical Franz-Keldysh Effect
• Time-Resolved Resonant Inelastic X-Ray Scattering in a Pumped Mott Insulator
• Magnetic-Field Tuning of Light-Induced Superconductivity in Striped La${}_{2-x}$Ba${}_x$CuO${}_4$
• Dynamically screened Coulomb interaction in the parent compounds of hole-doped cuprates, trends and exceptions
• Time-resolved resonant elastic soft X-ray scattering at Pohang Accelerator Laboratory X-ray Free Electron Laser
• Incident-energy-dependent spectral weight of resonant inelastic x-ray scattering in doped cuprates
• Antiphase Oscillations in the Time-Resolved Spin Structure Factor of a Photoexcited Mott Insulator
• Probing the Lattice Anharmonicity of Superconducting YBa${}_2$Cu${}_3$O${}_{7-\delta }$ Via Phonon Harmonics
• Dynamically induced doublon repulsion in the Fermi-Hubbard model probed by a single-particle density of states
• Ultrafast modification of the electronic structure of a correlated insulator
• Ultrafast electron localization in a correlated metal

Cited by in corpus (29)

• Exploring Quantum Materials with Resonant Inelastic X-Ray Scattering
• Photo-induced nonequilibrium states in Mott insulators
• Cavity engineering of solid-state materials without external driving
• Witnessing nonequilibrium entanglement dynamics in a strongly correlated fermionic chain
• The interplay of local electron correlations and ultrafast spin dynamics in fcc Ni
• Picosecond volume expansion drives a later-time insulator-metal transition in a nano-textured Mott Insulator
• Ultrafast creation of a light induced semimetallic state in strongly excited 1T-TiSe${}_2$
• Photo-induced charge dynamics in 1$T$-TaS${}_2$
• Photo-induced charge-transfer renormalization in NiO
• Dynamical Mean Field Theory extension to the nonequilibrium Two-Particle Self-Consistent approach
• Glassy dynamics of the one-dimensional Mott insulator excited by a strong terahertz pulse
• Distinguishing and controlling Mottness in 1T-TaS${}_2$ by ultrafast light
• Local interpretation of time-resolved X-ray absorption in Mott insulators: Insights from nonequilibrium dynamical mean-field theory
• Dynamical phase transitions in the photodriven charge-ordered Dirac-electron system
• Table-top soft x-ray source for XAS experiments with photon energies up to 350 eV
• A set-up for Hard X-ray Time-resolved Resonant Inelastic X-ray Scattering at SwissFEL
• Measuring the ultrafast screening of $U$ in photo-excited charge-transfer insulators with time-resolved X-ray absorption spectroscopy
• Nonequilibrium DMFT approach to time-resolved Raman spectroscopy
• Time-resolved X-ray Spectroscopy from the Atomic Orbital Ground State Up
• 4$f$ electron temperature driven ultrafast electron localization
• Dynamic charge order from strong correlations in the cuprates
• Optical detection of bond-dependent and frustrated spin in the two-dimensional cobalt-based honeycomb antiferromagnet Cu3Co2SbO6
• Subcycle tomography of quantum light
• Orbital-selective time-domain signature of nematicity dynamics in the charge-density-wave phase of La${}_{1.65}$Eu${}_{0.2}$Sr${}_{0.15}$CuO${}_4$
• Signatures of Floquet Engineering in the proximal Kitaev Quantum Spin Liquid H${}_3$LiIr${}_2$O${}_6$ by tr-RIXS
• Dynamical correlations and nonequilibrium sum rules in photodoped Hubbard ladders
• Ultrafast charge-transfer dynamics in Ca${}_2$CuO${}_2$Cl${}_2$ from time-resolved optical reflectivity
• Recent Progress in Ultrafast Dynamics of Transition-Metal Compounds Studied by Time-Resolved X-ray Techniques
• High Harmonic Tracking of Ultrafast Electron Dynamics across the Mott to Charge Density Wave Phase Transition