Angle-resolved photoemission spectroscopy study of HgBa${}_2$CuO${}_{4+\delta }$

Abstract

HgBa${}_2$CuO${}_{4+\delta }$ (Hg1201) has been shown to be a model cuprate for scattering, optical, and transport experiments, but angle-resolved photoemission spectroscopy (ARPES) data are still lacking owing to the absence of a charge-neutral cleavage plane. We report on progress in achieving the experimental conditions for which quasiparticles can be observed in the near-nodal region of the Fermi surface. The d-wave superconducting gap is measured and found to have a maximum of 39 meV. At low temperature, a kink is detected in the nodal dispersion at approximately 51 meV below the Fermi level, an energy that is different from other cuprates with comparable T${}_c$. The superconducting gap, Fermi surface, and nodal band renormalization measured here provide a crucial momentum-space complement to other experimental probes.

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Cited by in corpus (41)

• Electronic structure of quantum materials studied by angle-resolved photoemission spectroscopy
• Connection between charge-density-wave order and charge transport in the cuprate superconductors
• Validity of Kohler's rule in the pseudogap phase of the cuprate superconductors
• Intimate link between Charge Density Wave, Pseudogap and Superconducting Energy Scales in Cuprates
• Synchrotron x-ray scattering study of charge-density-wave order in HgBa${}_2$CuO${}_{4+\delta }$
• Commensurate antiferromagnetic excitations as a signature of the pseudogap in the tetragonal high-Tc cuprate HgBa${}_2$CuO${}_{4+\delta }$
• Single reconstructed Fermi surface pocket in an underdoped single layer cuprate superconductor
• Direct Observation of Orbital Hybridisation in a Cuprate Superconductor
• Hourglass dispersion and resonance of magnetic excitations in the superconducting state of the single-layer cuprate HgBa2CuO4+δ near optimal doping
• Resistivity phase diagram of cuprates revisited
• Effective SU(2) theory for the pseudogap state
• Magnetic Susceptibility and Simulated Neutron Signal in the 2D Hubbard Model
• Emergence of Quasiparticles in a Doped Mott Insulator
• Anisotropy of the gap parameter in the hole-doped cuprates
• The phase diagram of the underdoped cuprates at high magnetic field
• Angle Resolved Photo-Emission Spectroscopy signature of the Resonant Excitonic State
• Growth and characterization of HgBa2CaCu2O6+d and HgBa2Ca2Cu3O8+d crystals
• Origin of Kinks in Energy Dispersion of Strongly Correlated Matter
• Two-component energy spectrum of cuprates in the pseudogap phase and its evolution with temperature and at charge ordering
• Collective mode in the SU(2) theory of cuprates
• Unified intermediate coupling description of the pseudogap and the strange metal phases of cuprates
• Pseudo-spin Skyrmions in the Phase Diagram of Cuprate Superconductors
• Three interaction energy scales in single-layer high-T${}_C$ cuprate HgBa${}_2$CuO${}_{4+\delta }$
• High density of states in the pseudogap phase of the cuprate superconductor HgBa${}_2$CuO${}_{4+\delta }$
• Enhanced superconducting gap in the outer CuO${}_2$ plane of the trilayer cuprate (Hg,Re)Ba${}_2$Ca${}_2$Cu${}_3$O${}_{8+\delta }$
• A model for the neutron resonance in HgBa${}_2$CuO${}_{4+\delta }$
• Transport properties and doping evolution of the Fermi surface in cuprates
• First-principles electronic structure investigation of HgBa${}_2$Ca${}_{n-1}$Cu${}_n$O${}_{2n+2+x}$ with the SCAN density functional
• Observation of the Yamaji effect in a cuprate superconductor
• Fermi arcs and pseudogap emerging from dimensional crossover at the Fermi surface in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Effect of on-site Coulomb repulsion on ferromagnetic fluctuations in heavily over-doped cuprates
• Nanoscale structural correlations in a model cuprate superconductor
• Calculations of quantum oscillations in cuprate superconductors considering the pseudogap
• van Hove Singularity-Driven Emergence of Multiple Flat Bands in Kagome Superconductors
• Influence of oxygen-coordination number on the electronic structure of single-layer La-based cuprates
• Charge-Density-Wave State in Extremely Overdoped Cuprates Driven by Phonons
• Calculations of Spin Fluctuation Spectral Functions ${\alpha }^{2}F$ in High-Temperature Superconducting Cuprates
• Thermal Hall conductivity in the strongest cuprate superconductor: Estimate of the mean free path in the trilayer cuprate HgBa${}_2$Ca${}_2$Cu${}_3$O${}_{8+\delta }$
• Aspects of the normal state resistivity of cuprate superconductors Bi2201, Tl2201 and Hg1201
• High Temperature Superconductivity Dominated by Inner Underdoped CuO${}_2$ Planes in Quadruple-Layer Cuprate (Cu,C)Ba${}_2$Ca${}_3$Cu${}_4$O${}_{11+\delta }$
• BCS-BEC crossover driven by small Fermi pockets of a high-Tc cuprate superconductor