Quasiparticle interference and charge order in a heavily overdoped non-superconducting cuprate

Abstract

One of the key issues in unraveling the mystery of high Tc superconductivity in the cuprates is to understand the normal state outside the superconducting dome. Here we perform scanning tunneling microscopy and spectroscopy measurements on a heavily overdoped, non-superconducting (Bi,Pb)2Sr2CuO6+x cuprate. Spectroscopic imaging reveals dispersive quasiparticle interferences and the Fourier transforms uncover the evolution of momentum space topology. More interestingly, we observe nanoscale patches of static charge order with sqrt(2)*sqrt(2) periodicity. Both the dispersive quasiparticle interference and static charge order can be qualitatively explained by theoretical calculations, which reveal the unique electronic structure of strongly overdoped cuprate.

arXiv comment16 pages, 4 figures

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Cited by in corpus (9)

• Puddle formation, persistent gaps, and non-mean-field breakdown of superconductivity in overdoped (Pb,Bi)2Sr2CuO6+δ
• Evolution of Charge and Pair Density Modulations in Overdoped Bi2Sr2CuO6+delta
• Particle-hole asymmetric superconducting coherence peaks in overdoped cuprates
• Emergent normal fluid in the superconducting ground state of overdoped cuprates
• Magnetic Impurity Effects on Ferromagnetic Fluctuations in Heavily Overdoped (Bi,Pb)${}_2$Sr${}_2$Cu${}_{1-y}$Fe${}_y$O${}_{6+\delta }$ Cuprates
• Visualizing the charge order and topological defects in an overdoped (Bi,Pb)${}_2$Sr${}_2$CuO${}_{6+x}$ superconductor
• Transport properties of very overdoped nonsuperconducting Bi2Sr2CuO6+d thin films
• Mottness induced superfluid phase fluctuation with increased density
• Superconducting phase interference effect in momentum space