Strongly correlated model of acousticlike plasmons persisting across the phase diagram of cuprate superconductors

Abstract

Layered two-dimensional electron systems exhibit both optical and acousticlike plasmons around the Brillouin-zone center. In the layered cuprate La${}_{2-x}$Sr${}_x$CuO${}_4$, resonant inelastic x-ray scattering (RIXS) has detected corresponding acousticlike plasmons in a low-energy regime comparable to that of other collective excitations associated with distinct regions of the cuprate phase diagram. This overlap in energy scale raises the question of whether the acousticlike plasmons are significantly influenced by phase-specific electronic phenomena, including the pseudogap, charge and spin order, superconductivity, and strange-metal behavior. Here we show that a single parameter set of the layered $t$-$J$-$V$ model, which incorporates strong correlations and the long-range Coulomb interaction $V$, consistently describes the acousticlike plasmon dispersion across all currently available RIXS data from the underdoped to the heavily overdoped regime. This transferability of a single parameter set exceeds that of earlier theoretical descriptions and supports a picture in which strong correlations persist into the heavily overdoped regime, while the collective plasmon mode exhibits only limited sensitivity to the phase-specific electronic phenomena that distinguish different regions of the phase diagram.

References in corpus (64)

• Angle-resolved photoemission spectroscopy of the cuprate superconductors
• The pseudogap in high-temperature superconductors: an experimental survey
• A Common Thread: the pairing interaction for the unconventional superconductors
• Resonant Inelastic X-ray Scattering Studies of Elementary Excitations
• Long-range incommensurate charge fluctuations in (Y,Nd)Ba2Cu3O(6+x)
• Direct observation of competition between superconductivity and charge density wave order in YBa2Cu3Oy
• Scanning tunneling spectroscopy of high-temperature superconductors
• Inelastic Light Scattering From Correlated Electrons
• Intense paramagnon excitations in a large family of high-temperature superconductors
• The Physics of Pair Density Waves
• Evolution of the resonance and incommensurate spin fluctuations in superconducting YBa${}_2$Cu${}_3$O${}_{6+x}$
• Distinct Charge Orders in the Planes and Chains of Ortho-III-Ordered YBa${}_2$Cu${}_3$O${}_{6+\delta }$ Superconductors Identified by Resonant Elastic X-ray Scattering
• Persistence of magnetic excitations in La2-xSrxCuO4 from the undoped insulator to the heavily overdoped non-superconducting metal
• Heat Transport in a Strongly Overdoped Cuprate: Fermi Liquid and Pure d-wave BCS Superconductor
• Fermi Surface and Quasiparticle Excitations of overdoped Tl2Ba2CuO6+d by ARPES
• Charge-density-wave order with momentum $(2Q,0)$ and $(0,2Q)$ within the spin-fermion model: continuous and discrete symmetry breaking, preemptive composite order, and relation to pseudogap in hole-doped cuprates
• Magnetic neutron scattering in hole doped cuprate superconductors
• The ground state of heavily-overdoped non-superconducting La${}_{2-x}$Sr${}_x$CuO${}_4$
• Planckian dissipation, minimal viscosity and the transport in cuprate strange metals
• Three dimensional collective charge excitations in electron-doped cuprate superconductors
• Persistent spin excitations in doped antiferromagnets revealed by resonant inelastic light scattering
• Asymmetry of collective excitations in electron and hole doped cuprate superconductors
• High-energy spin and charge excitations in electron-doped copper oxide superconductors
• Electronic Collective Modes and Superconductivity in Layered Conductors
• Dispersive spin excitations in highly overdoped cuprates revealed by resonant inelastic x-ray scattering
• Charge-density-waves and superconductivity as an alternative to phase separation in the infinite-U Hubbard-Holstein model
• Charge Order in the Pseudogap Phase of Cuprate Superconductors
• High-energy magnetic excitations in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$: Towards a unified description of the electronic and magnetic degrees of freedom in the cuprates
• Bond order instabilities in a correlated two-dimensional metal
• Momentum Dependence of Charge Excitations in the Electron-Doped Superconductor Nd1.85Ce0.15CuO4: a RIXS Study
• Cascade of phase transitions in the vicinity of a quantum critical point
• Detection of Acoustic Plasmons in Hole-Doped Lanthanum and Bismuth Cuprate Superconductors Using Resonant Inelastic X-Ray Scattering
• Distinct doping dependences of the pseudogap and superconducting gap La${}_{2-x}$Sr${}_x$CuO${}_4$ cuprate superconductors
• Spin-Fluctuation-Driven Nematic Charge-Density-Wave in Cuprate Superconductors: Impact of Aslamazov-Larkin-Type Vertex Correction
• Possible charge instabilities in two-dimensional doped Mott insulators
• Doping evolution of the charge excitations and electron correlations in electron-doped superconducting La${}_{2-x}$Ce${}_x$CuO${}_4$
• Plasmon excitations in layered high-Tc cuprates
• Acoustic plasmons and conducting carriers in hole-doped cuprate superconductors
• Observation of a dispersive charge mode in hole-doped cuprates using resonant inelastic x-ray scattering at the oxygen K edge
• A resonant inelastic x-ray scattering study of the spin and charge excitations in the overdoped superconductor La1.77Sr0.23CuO4
• Temperature-dependent ellipsometry measurements of partial Coulomb energy in superconducting cuprates
• Exploring Quantum Materials with Resonant Inelastic X-Ray Scattering
• Crossover from Collective to Incoherent Spin Excitations in Superconducting Cuprates Probed by Detuned Resonant Inelastic X-ray Scattering
• High-energy magnetic excitations in overdoped La${}_{2-x}$Sr${}_x$CuO${}_4$ studied by neutron and resonant inelastic X-ray scattering
• Gapped collective charge excitations and interlayer hopping in cuprate superconductors
• Evolution of plasmon excitations across the phase diagram of the cuprate superconductor La${}_{2-x}$Sr${}_x$CuO${}_4$
• A strong coupling critique of spin fluctuation driven charge order in underdoped cuprates
• On the electron-energy loss spectra and plasmon resonance in cuprates
• Generalized plasma waves in layered superconductors
• A unified theory of spin and charge excitations in high-$T_c$ cuprates: Quantitative comparison with experiment and interpretation
• Dual structure in the charge excitation spectrum of electron-doped cuprates
• Prevailing charge order in overdoped cuprates beyond the superconducting dome
• Plasmon dispersion in bilayer cuprate superconductors
• Self-energy effects in electronic Raman spectra of doped cuprates due to magnetic fluctuations
• Resonant inelastic X-ray scattering study of intra-band charge excitations in hole-doped high-Tc cuprates
• Impact of electron correlations on two-particle charge response in electron- and hole-doped cuprates
• Probing the bulk plasmon continuum of layered materials through electron energy loss spectroscopy in a reflection geometry
• Theory of charge dynamics in bilayer electron system with long-range Coulomb interaction
• Unusual Low-Energy Collective Charge Excitations in High-$T_c$ Cuprate Superconductors
• Competition between spin-induced charge instabilities in underdoped cuprates
• Ghost Josephson plasmon in bilayer superconductors
• Out-of-phase Plasmon Excitations in the Trilayer Cuprate Bi${}_2$Sr${}_2$Ca${}_2$Cu${}_3$O${}_{10+\delta }$
• Spin and bond-charge excitation spectra in correlated electron systems near antiferromagnetic phase
• The doping evolution of the charge density wave and charge density fluctuations in La${}_{2-x}$Sr${}_x$CuO${}_4$