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Intra-unit-cell electronic nematicity of the high-Tc copper-oxide pseudogap states
The determination of a quantitative order parameter representing intra-unit-cell nematicity: the breaking of rotational symmetry by the electronic structure within each CuO2 unit cell is reported. Expand
Charge Order Driven by Fermi-Arc Instability in Bi2Sr2−xLaxCuO6+δ
Together with earlier observations of electronic order in other cuprate families, these findings suggest the existence of a generic charge-ordered state in underdoped cuprates and uncover its intimate connection to the pseudogap regime. Expand
Coincidence of checkerboard charge order and antinodal state decoherence in strongly underdoped superconducting Bi2Sr2CaCu2O8 + delta).
Exclusively in regions exhibiting this new spectrum, local "checkerboard" charge ordering of high energy states coexists harmoniously with the low energy Bogoliubov quasiparticle states. Expand
Relating atomic-scale electronic phenomena to wave-like quasiparticle states in superconducting Bi2Sr2CaCu2O8+δ
F Fourier transform studies of atomic-scale spatial modulations in the Bi-2212 density of states show strong similarities to the structure of the occupied states, and the copper oxide quasiparticles apparently exhibit particle–hole mixing similar to that of conventional superconductors. Expand
A Four Unit Cell Periodic Pattern of Quasi-Particle States Surrounding Vortex Cores in Bi2Sr2CaCu2O8+δ
Scanning tunneling microscopy is used to image the additional quasi-particle states generated by quantized vortices in the high critical temperature superconductor Bi2Sr2CaCu2O8+δ. They exhibit aExpand
Evidence for ubiquitous strong electron–phonon coupling in high-temperature superconductors
Coupling between electrons and phonons (lattice vibrations) drives the formation of the electron pairs responsible for conventional superconductivity. The lack of direct evidence for electron–phononExpand
From a Single-Band Metal to a High-Temperature Superconductor via Two Thermal Phase Transitions
Upon further cooling, spectroscopic signatures of superconductivity begin to grow close to the superconducting transition temperature (Tc), entangled in an energy-momentum–dependent manner with the preexisting pseudogap features, ushering in a ground state with coexisting orders. Expand
Imaging Quasiparticle Interference in Bi2Sr2CaCu2O8+δ
Scanning tunneling spectroscopy of the high-T c superconductor Bi2Sr2CaCu2O8+δreveals weak, incommensurate, spatial modulations in the tunneling conductance. Images of these energy-dependentExpand
An Intrinsic Bond-Centered Electronic Glass with Unidirectional Domains in Underdoped Cuprates
Removing electrons from the CuO2 plane of cuprates alters the electronic correlations sufficiently to produce high-temperature superconductivity. Associated with these changes are spectral-weightExpand
Quantum critical behaviour in a high-Tc superconductor
It is demonstrated that the experimentally measured phase angle agrees precisely with the exponent of the optical conductivity, which points towards a quantum phase transition of an unconventional kind in the high-Tc superconductors. Expand