Superconducting correlations induced by charge ordering in cuprate superconductors and Fermi-arc formation

2017/05/09 by E. V. L. de Mello, J. E. Sonier · 8 citations
Materials Science · Physics and Astronomy · #Charge (physics) #Charge density wave #Charge ordering #Condensed matter physics #Coupling (piping) #Cuprate #Doping #Electron #Energy (signal processing) #Fermi energy #Magnetic and transport properties of perovskites and related materials #Materials science #Order (exchange) #Physics #Physics of Superconductivity and Magnetism #Pseudogap #Quantum mechanics #Superconductivity #Superconductivity in MgB2 and Alloys #Transition temperature #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevb.95.184520

published in Physical review. B./Physical review. B 95(18) (American Physical Society) · Physical Review B, in press, 11 pages, 7 figures

arxiv created 2017/05/09 · openalex publication_date 2017/05/30 · arxiv updated 2017/06/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We have developed a generalized electronic phase separation model of high-temperature cuprate superconductors that links the two distinct energy scales of the superconducting (SC) and pseudogap (PG) phases via a charge-density-wave (CDW) state. We show that simulated electronic-density modulations resembling the charge order modulations detected in cuprates intertwine the SC and charge orders by localizing charge and providing the energy scale for a spatially periodic SC attractive potential. Bulk superconductivity is achieved with the inclusion of Josephson coupling between nanoscale domains of intertwined fluctuating CDW and SC orders, and local SC phase fluctuations give rise to the Fermi arcs along the nodal directions of the SC gap. We demonstrate the validity of the model by reproducing the hole-doping dependence of the PG onset temperature T^*, and the SC transition temperature T_c of YBa₂Cu₃O_y and Bi_2\ensuremath-yPb_ySr_2\ensuremath-zLa_zCuO_6+\ensuremathδ. The results show that the periodicity of the CDW order is controlled by the PG energy scale, and the hole-doping dependence of the SC energy gap is controlled by the charge ordering.

Citations

• Evolution of the density of states at the Fermi level ofBi2−yPbySr2−xLaxCuO6+δandBi2Sr2−xLaxCuO6+δcuprates with hole doping
• A ‘checkerboard’ electronic crystal state in lightly hole-doped Ca2-xNaxCuO2Cl2
• Strongly nonlinear magnetization above T c in Bi 2 Sr 2 CaCu 2 O 8 + δ
• Intrinsic Tunneling Spectra ofBi2(Sr2−xLax)CuO6+δ
• Free Energy of a Nonuniform System. I. Interfacial Free Energy
• Imaging nanoscale Fermi-surface variations in an inhomogeneous superconductor
• Fluctuating stripes at the onset of the pseudogap in the high-Tc superconductor Bi2Sr2CaCu2O8+x
• Local Ordering in the Pseudogap State of the High- T c Superconductor Bi 2 Sr 2 CaCu 2 O 8+δ
• Two gaps make a high-temperature superconductor?