Visualizing the evolution from the Mott insulator to a charge ordered insulator in lightly doped cuprates

Abstract

A central question in the high temperature cuprate superconductors is the fate of the parent Mott insulator upon charge doping. Here we use scanning tunneling microscopy to investigate the local electronic structure of lightly doped cuprate in the antiferromagnetic insulating regime. We show that the doped charge induces a spectral weight transfer from the high energy Hubbard bands to the low energy in-gap states. With increasing doping, a V-shaped density of state suppression occurs at the Fermi level, which is accompanied by the emergence of checkerboard charge order. The new STM perspective revealed here is the cuprates first become a charge ordered insulator upon doping. Subsequently, with further doping, Fermi surface and high temperature superconductivity grow out of it.

4 figures, with supplementary materials

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• Direct observation of charge order in underdoped and optimally doped Bi${}_2$(Sr,La)${}_2$CuO${}_{6+\delta }$ by resonant inelastic x-ray scattering
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• Nodeless high-T${}_c$ superconductivity in highly-overdoped monolayer CuO${}_2$
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• Charge-Stripe Crystal Phase in an Insulating Cuprate
• Poor electronic screening in lightly doped Mott insulators observed with scanning tunneling microscopy
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• Disorder induced power-law gaps in an insulator-metal Mott transition
• Incommensurate smectic phase in close proximity to the high-Tc superconductor FeSe/SrTiO3
• Charge-fluctuations in lightly hole-doped cuprates: effect of vertex corrections
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• The emergence of global phase coherence from local pairing in underdoped cuprates
• Realization of metallic state in 1T-TaS2 with persisting long-range order of charge density wave
• Direct visualization of ambipolar Mott transition in cuprate CuO2 planes
• Momentum-Resolved Visualization of Electronic Evolution in Doping a Mott Insulator
• Atomic-scale fragmentation and collapse of antiferromagnetic order in a doped Mott insulator
• Electron-Phonon-Driven Three-Dimensional Metallicity in an Insulating Cuprate
• Effects of interaction strength, doping, and frustration on the antiferromagnetic phase of the two-dimensional Hubbard model
• Revealing the Coulomb interaction strength in a cuprate superconductor
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• Evolution of Charge and Pair Density Modulations in Overdoped Bi2Sr2CuO6+delta
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• Prevailing charge order in overdoped cuprates beyond the superconducting dome
• Correlation-Driven Electron-Hole Asymmetry in Graphene Field Effect Devices
• Diversity of charge orderings in correlated systems
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• Density wave probes cuprate quantum phase transition
• The study of electronic nematicity in an overdoped (Bi, Pb)${}_2$Sr${}_2$CuO${}_{6+\delta }$ superconductor using scanning tunneling spectroscopy
• Metal-insulator transition in copper oxides induced by apex displacements
• Quasiparticle interference and charge order in a heavily overdoped non-superconducting cuprate
• Extended Falicov-Kimball model: Exact solution for finite temperatures
• Mott insulating phase and coherent-incoherent crossover across magnetic phase transition in 2D antiferromagnetic CrSBr
• Extended Falicov-Kimball model: exact solution for the ground state
• Stripe Symmetry of Short-range Charge Density Waves in Cuprate Superconductors
• Unusual Hole-doping-dependent Electronic Instability and Electron-Phonon Coupling in Infinite-layer Nickelates
• Finite-Temperature Charge Dynamics and the Melting of the Mott Insulator
• Discovery of Orbital Ordering in Bi2Sr2CaCu2O8+x
• Avoided metallicity in a hole-doped Mott insulator on a triangular lattice
• Spectral evolution with doping of an antiferromagnetic Mott state
• Strain-induced long-range charge-density wave order in the optimally doped Bi${}_2$Sr${}_{2-x}$La${}_x$CuO${}_6$ superconductor
• Electronic inhomogeneity and band structure on superstructural CuO2 planes of infinite-layer Sr0.94La0.06CuO2+y films
• Extended Falicov-Kimball model: Hartree-Fock vs DMFT approach
• Ubiquitous stripe phase and enhanced electron pairing in interfacial high-Tc superconductor FeSe/BaTiO${}_3$
• Unusually thick metal-insulator domain walls around the Mott point
• Insulator-to-metal Mott transition facilitated by lattice deformation in monolayer $\alpha$-RuCl${}_3$ on graphite
• Spontaneous layer selective Mott phase in the bilayer Hubbard model
• Visualizing the charge order and topological defects in an overdoped (Bi,Pb)${}_2$Sr${}_2$CuO${}_{6+x}$ superconductor
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• Charge density wave solutions of the Hubbard model in the composite operator formalism
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