Doping Evolution of Nodal Electron Dynamics in Trilayer Cuprate Superconductor Bi${}_2$Sr${}_2$Ca${}_2$Cu${}_3$O${}_{10+\delta }$ Revealed by Laser-Based Angle-Resolved Photoemission Spectroscopy

Abstract

The doping evolution of the nodal electron dynamics in the trilayer cuprate superconductor Bi${}_2$Sr${}_2$Ca${}_2$Cu${}_3$O${}_{10+\delta }$ (Bi2223) is investigated using high-resolution laser-based angle-resolved photoemission spectroscopy (ARPES). Bi2223 single crystals with different doping levels are prepared by controlled annealing which cover the underdoped, optimally-doped and overdoped regions. The electronic phase diagram of Bi2223 is established which describes the T${}_{\mathrm{c}}$ dependence on the sample doping level. The doping dependence of the nodal Fermi momentum for the outer (OP) and inner (IP) CuO${}_2$ planes is determined. Charge distribution imbalance between the OP and IP CuO${}_2$ planes is quantified, showing enhanced disparity with increasing doping. Nodal band dispersions demonstrate a prominent kink at $\sim$94meV in the IP band, attributed to the unique Cu coordination in the IP plane, while a weaker $\sim$60meV kink is observed in the OP band. The nodal Fermi velocity of both OP and IP bands is nearly constant at $\sim$1.62eVÅ independent of doping. These results provide important information to understand the origin of high T${}_{\mathrm{c}}$ and superconductivity mechanism in high temperature cuprate superconductors.

18 pages, 4 figures

References in corpus (21)

• Evidence for ubiquitous strong electron-phonon coupling in high-temperature superconductors
• Effect of chemical inhomogeneity in the bismuth-based copper oxide superconductors
• On the Doping and Temperature Dependence of the Mass Enhancement Observed in the Cuprate Bi2212
• Renormalization of spectral lineshape and dispersion below Tc in Bi2Sr2CaCu2O8+d
• Evidence for an energy scale for quasiparticle dispersion in Bi_2Sr_2CaCu_2O_8
• Development of a Vacuum Ultra-Violet Laser-Based Angle-Resolved Photoemission System with a Super-High Energy Resolution Better Than 1 meV
• Hole-Doped Cuprate High Temperature Superconductors
• An explanation for a universality of transition temperatures in families of copper oxide superconductors
• High-Tc Superconductivity and Antiferromagnetism in Multilayered Copper Oxides - A New Paradigm of Superconducting Mechanism -
• New Developments in Laser-Based Photoemission Spectroscopy and its Scientific Applications: a Key Issues Review
• Electronic structure of the trilayer cuprate superconductor Bi${}_2$Sr${}_2$Ca${}_2$Cu${}_3$O${}_{10+\delta }$
• Enhanced superconducting gaps in the tri-layer high-$T_c$ cuprate Bi${}_2$Sr${}_2$Ca${}_2$Cu${}_3$O${}_{10+\delta }$
• Doping Dependence of Anisotropic Resistivities in Trilayered Superconductor Bi2Sr2Ca2Cu3O10+delta (Bi-2223)
• Electronic Origin of High-Tc Maximization and Persistence in Trilayer Cuprate Superconductors
• An energy scale directly related to superconductivity in the high-$T_c$ cuprate superconductors: Universality from the Fermi arc picture
• Effect of oxygen-doping on Bi-2223 vortex matter: Crossover from electromagnetic to Josephson interlayer coupling
• Effect of oxygen-doping on Bi${}_2$Sr${}_2$Ca${}_2$Cu${}_3$O${}_{10+\delta }$ vortex matter: Crossover from electromagnetic to Josephson interlayer coupling
• Hybridization of Bogoliubov-quasiparticles between adjacent CuO${}_2$ layers in the triple-layer cuprate Bi${}_2$Sr${}_2$Ca${}_2$Cu${}_3$O${}_{10+\delta }$ studied by ARPES
• Ubiquitous Coexisting Electron-Mode Couplings in High Temperature Cuprate Superconductors
• Effect of electron-phonon coupling in the ARPES spectra of the tri-layer cuprate Bi${}_2$Sr${}_2$Ca${}_2$Cu${}_3$O${}_{10+\delta }$
• Proximity-Induced Nodal Metal in an Extremely Underdoped CuO${}_2$ Plane in Triple-Layer Cuprates