Electronic Origin of High-Tc Maximization and Persistence in Trilayer Cuprate Superconductors

Abstract

In high temperature cuprate superconductors, it was found that the superconducting transition temperature Tc depends on the number of CuO2 planes (n) in the structural unit and the maximum Tc is realized in the trilayer system (n=3). It was also found that the trilayer superconductors exhibit an unusual phase diagram that Tc keeps nearly constant in the overdoped region which is in strong contrast to the Tc decrease usually found in other cuprate superconductors. The electronic origin of the Tc maximization in the trilayer superconductors and its high Tc persistence in the overdoped region remains unclear. By taking high resolution laser-based angle resolved photoemission (ARPES) measurements, here we report our revelation of the microscopic origin of the unusual superconducting properties in the trilayer superconductors. For the first time we have observed the trilayer splitting in Bi2Sr2Ca2Cu3O10+d (Bi2223) superconductor. The observed Fermi surface, band structures, superconducting gap and the selective Bogoliubov band hybridizations can be well described by a three-layer interaction model. Quantitative information of the microscopic processes involving intra- and interlayer hoppings and pairings are extracted. The electronic origin of the maximum Tc in Bi2223 and the persistence of the high Tc in the overdoped region is revealed. These results provide key insights in understanding high Tc superconductivity and pave a way to further enhance Tc in the cuprate superconductors.

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• Nonlinear Response of Diffusive Superconductors to $ac$-electromagnetic Fields
• Multi-Dimensional Coherent Spectroscopy of Light-Driven States and their Collective Modes in Multi-Band Superconductors
• Unprecedentedly large gap in HgBa${}_2$Ca${}_2$Cu${}_3$O${}_{8+\delta }$ with the highest $T_c$ at ambient pressure
• Enhanced superconducting gap in the outer CuO${}_2$ plane of the trilayer cuprate (Hg,Re)Ba${}_2$Ca${}_2$Cu${}_3$O${}_{8+\delta }$
• Out-of-phase Plasmon Excitations in the Trilayer Cuprate Bi${}_2$Sr${}_2$Ca${}_2$Cu${}_3$O${}_{10+\delta }$
• Quantum Liouville's theorem based on Haar measure
• Charge order near the antiferromagnetic quantum critical point in the trilayer high $T_c$ cuprate HgBa${}_2$Ca${}_2$Cu${}_3$O${}_{8+\delta }$
• Preparation and optimization of high-temperature superconducting Ruddlesden-Popper nickelate thin films
• Weakly anisotropic superconductivity of Pr4Ni3O10 single crystals
• Interlayer couplings in cuprates: structural origins, analytical forms, and structural estimators
• Universal electronic structure of multi-layered nickelates via oxygen-centered planar orbitals
• Pairing susceptibility in the weakly interacting multilayer Hubbard model evaluated by direct perturbative expansion
• Signature of T${}_{\text{c}}$ above 111 K in Li-doped (Bi,Pb)-2223 superconductors: synergistic nature of hole concentration, coherence length and Josephson interlayer coupling
• Coherent Transfer of Lattice Entropy via Extreme Nonlinear Phononics in Metal Halide Perovskites
• Parameters dependent superconducting transition temperature in high temperature superconductors
• Superconducting phase diagram of multi-layer square-planar nickelates
• Enhanced superconductivity via layer differentiation in trilayer Hubbard model
• 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
• High Temperature Superconductivity Dominated by Inner Underdoped CuO${}_2$ Planes in Quadruple-Layer Cuprate (Cu,C)Ba${}_2$Ca${}_3$Cu${}_4$O${}_{11+\delta }$
• Origin of insulating-like behavior of Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+x}$ under pressure: A first-principles study
• Magnetically Mediated Cross-Layer Pairing in Pressurized Trilayer Nickelate La${}_4$Ni${}_3$O${}_{10}$
• Persistent Fermi Pockets and Robust Electron Pairing in Lightly Doped CuO${}_2$ Planes of Cuprate Superconductors
• Electronic Structure and Superconducting Gap of HgBa${}_2$Ca${}_2$Cu${}_3$O${}_{8+\delta }$ Revealed by Laser-Based Angle-Resolved Photoemission Spectroscopy
• Probing d-wave superconducting gap of high-$T_{\mathrm{c}}$ cuprate ${\mathrm{Bi}}_2{\mathrm{Sr}}_2{\mathrm{Ca}}_2{\mathrm{Cu}}_3{\mathrm{O}}_{10+\delta }$ by resonant inelastic X-ray scattering