Normal state electronic structure in the heavily overdoped regime of Bi1.74Pb0.38Sr1.88CuO6+delta single-layer cuprate superconductors

Abstract

We explore the electronic structure in the heavily overdoped regime of the single layer cuprate superconductor Bi1.74Pb0.38Sr1.88CuO6+delta. We found that the nodal quasiparticle behavior is dominated mostly by phonons, while the antinodal quasiparticle lineshape is dominated by spin fluctuations. Moreover, while long range spin fluctuations diminish at very high doping, the local magnetic fluctuations still dominate the quasiparticle dispersion, and the system exhibits a strange metal behavior in the entire overdoped regime.

5 pages, 4 figures

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• Superconducting coherence peak in the electronic excitations of a single layer cuprate superconductor $B{i}_{2}S{r}_{1.6}L{a}_{0.4}Cu{O}_{6+\delta }$
• Direct observation of the bandwidth control Mott transition in the NiS${}_{2-x}$Se${}_x$ multiband system
• Direct observation of strong correlations near the band insulator regime of Bi misfit cobaltates
• Electron pockets and pseudogap asymmetry observed in the thermopower of underdoped cuprates
• Colossal band renormalization and stoner ferromagnetism induced by electron-antiferromagnetic-magnon coupling
• Origin of Kinks in Energy Dispersion of Strongly Correlated Matter
• Quasiparticle interference and charge order in a heavily overdoped non-superconducting cuprate
• On the cuprates' universal waterfall feature: evidence of a momentum-driven crossover