Quantitative analysis of Sr2RuO4 ARPES spectra: Many-body interactions in a model Fermi liquid

Abstract

ARPES spectra hold a wealth of information about the many-body interactions in a correlated material. However, the quantitative analysis of ARPES spectra to extract the various coupling parameters in a consistent manner is extremely challenging, even for a model Fermi liquid system. We propose a fitting procedure which allows quantitative access to the intrinsic lineshape, deconvolved of energy and momentum resolution effects, of the correlated 2-dimensional material Sr2RuO4. For the first time in correlated 2-dimensional materials, we find an ARPES linewidth that is narrower than its binding energy, a key property of quasiparticles within Fermi liquid theory. We also find that when the electron-electron scattering component is separated from the electron-phonon and impurity scattering terms it decreases with a functional form compatible with Fermi liquid theory as the Fermi energy is approached. In combination with the previously determined Fermi surface, these results give the first complete picture of a Fermi liquid system via ARPES. Furthermore, we show that the magnitude of the extracted imaginary part of the self-energy is in remarkable agreement with DC transport measurements.

10 pages, 5 figures

References in corpus (10)

• Angle-resolved photoemission spectroscopy of the cuprate superconductors
• Fermi Surface, Surface States, and Surface Reconstruction in Sr2RuO4
• Detailed Topography of the Fermi Surface of Sr2RuO4
• Importance of matrix elements in the ARPES spectra of BISCO
• Photoemission Quasi-Particle Spectra of Sr${}_2$RuO${}_4$
• An angle-resolved photoemission spectral function analysis of the electron doped cuprate Nd_1.85Ce_0.15CuO_4
• Surface electronic structure of Sr2RuO4
• Electron-phonon interaction at the Be(0001) surface
• Elastic Tensor of Sr${}_2$RuO${}_4$
• Spectral Function of 2D Fermi Liquids

Cited by in corpus (36)

• Electronic structure of quantum materials studied by angle-resolved photoemission spectroscopy
• The coherence-incoherence crossover and the mass-renormalization puzzles in Sr2RuO4
• Strong spin-orbit coupling effects on the Fermi surface of Sr2RuO4 and Sr2RhO4
• Fermi surface of superconducting LaFePO determined by quantum oscillations
• High-resolution photoemission on Sr2RuO4 reveals correlation-enhanced effective spin-orbit coupling and dominantly local self-energies
• Coulomb-Enhanced Spin-Orbit Splitting: The Missing Piece in the Sr2RhO4 Puzzle
• Direct determination of mode-projected electron-phonon coupling in the time-domain
• The Fermi surface of Sr2RuO4: spin-orbit and anisotropic Coulomb interaction effects
• Optical Response of Sr${}_2$RuO${}_4$ Reveals Universal Fermi-liquid Scaling and Quasiparticles Beyond Landau Theory
• Observation of a novel orbital selective Mott transition in Ca${}_{1.8}$Sr${}_{0.2}$RuO${}_4$
• Tl2Ba2CuO6+d Brings Spectroscopic Probes Deep Into the Overdoped Regime of the High-Tc Cuprates
• Fermi surface and quasiparticle excitations of Sr${}_2$RhO${}_4$
• Magnetic response of Sr${}_2$RuO${}_4$: quasi-local spin fluctuations due to Hund's coupling
• Low-energy (< 10 meV) feature in the nodal electron self-energy and strong temperature dependence of the Fermi velocity in Bi(2)Sr(2)CaCu(2)O(8+delta)
• Quasiparticle Interference and Strong Electron-Mode Coupling in the Quasi-One-Dimensional Bands of Sr${}_2$RuO${}_4$
• Cleaving-temperature dependence of layered-oxide surfaces
• Extracting the spectral function of the cuprates by a full two-dimensional analysis: Angle-resolved photoemission spectra of Bi2Sr2CuO6
• Quantum Oscillation Studies of the Fermi Surface of LaFePO
• Interplay between spin-orbit coupling and van Hove singularity in the Hund's metallicity of Sr${}_2$RuO${}_4$
• Surface and bulk electronic structure of unconventional superconductor Sr_2RuO_4: unusual splitting of the beta-band
• A spectral function tour of electron-phonon coupling outside the Migdal limit
• Deconstruction of Resolution Effects in Angle-Resolved Photoemission
• Elusive electron-phonon coupling in quantitative analyses of the spectral function
• Large momentum-dependence of the main dispersion "kink" in the high-Tc superconductor Bi2Sr2CaCu2O8+δ
• Competing magnetic orders in quantum critical Sr${}_3$Ru${}_2$O${}_7$
• Self-energy corrections to anisotropic Fermi surfaces
• About two-dimensional fits for the analysis of the scattering rates and renormalization functions from angle-resolved photoelectron spectroscopy data
• Resilient Fermi liquid and strength of correlations near an antiferromagnetic quantum critical point
• Orbital Dependence of Quasiparticle Lifetimes in Sr2RuO4
• Signatures of Hund Metal and finite-frequency nesting in Sr${}_2$RuO${}_4$ Revealed by Electronic Raman Scattering
• Oxide Fermi liquid universality revealed by electron spectroscopy
• Orbital dichotomy of Fermi liquid properties in Sr${}_2$RuO${}_4$ revealed by Raman spectroscopy
• Energy-scale cascade and correspondence between Mott and Kondo lattice physics
• Propagating charge carrier plasmon in Sr2RuO4
• Layer-dependent spin-resolved electronic structure of ferromagnetic triple-layered ruthenate Sr${}_4$Ru${}_3$O${}_{10}$
• Anisotropic scattering rates in strain-tuned Sr${}_2$RuO${}_4$