Particle-hole asymmetric superconducting coherence peaks in overdoped cuprates

Abstract

To elucidate the superconductor to metal transition at the end of superconducting dome, the overdoped regime has stepped onto the center stage of cuprate research recently. Here, we use scanning tunneling microscopy to investigate the atomic-scale electronic structure of overdoped trilayer Bi-2223 and bilayer Bi-2212 cuprates. At low energies the spectroscopic maps are well described by dispersive quasiparticle interference patterns. However, as the bias increases to the superconducting coherence peak energy, a virtually non-dispersive pattern with sqrt(2)*sqrt(2) periodicity emerges. Remarkably, the position of the coherence peaks exhibits evident particle-hole asymmetry which also modulates with the same period. We propose that this is an extreme quasiparticle interference phenomenon, caused by pairing-breaking scattering between flat anti-nodal Bogoliubov bands, which is ultimately responsible for the superconductor to metal transition.

15 pages, 4 figures

References in corpus (14)

• Scanning tunneling spectroscopy of high-temperature superconductors
• A `checkerboard' electronic crystal state in lightly hole-doped Ca_{2-x}Na_{x}CuO_{2}Cl_{2}
• An Intrinsic Bond-Centered Electronic Glass with Unidirectional Domains in Underdoped Cuprates
• How Cooper pairs vanish approaching the Mott insulator in Bi2Sr2CaCu2O8+d
• Energy gaps in high-transition temperature cuprate superconductors
• From a single-band metal to a high-temperature superconductor via two thermal phase transitions
• From a single-band metal to a high-temperature superconductor via two thermal phase transitions (Supporting Material)
• Appearance of fluctuating stripes at the onset of the pseudogap in the high-Tc Superconductor Bi2Sr2CaCu2O8+x
• Point nodes persisting far beyond Tc in Bi2212
• A momentum-dependent perspective on quasiparticle interference in Bi_{2}Sr_{2}CaCu_{2}O_{8+δ}
• Bogoliubov angle and visualization of particle-hole mixture in superconductors
• Effect of oxygen-doping on Bi${}_2$Sr${}_2$Ca${}_2$Cu${}_3$O${}_{10+\delta }$ vortex matter: Crossover from electromagnetic to Josephson interlayer coupling
• Quasiparticle interference and charge order in a heavily overdoped non-superconducting cuprate
• Anomalous doping evolution of superconductivity and quasiparticle interference in Bi2Sr2Ca2Cu3O10+δ trilayer cuprates

Cited by in corpus (13)

• Emergent normal fluid in the superconducting ground state of overdoped cuprates
• Unprecedentedly large gap in HgBa${}_2$Ca${}_2$Cu${}_3$O${}_{8+\delta }$ with the highest $T_c$ at ambient pressure
• Pair-breaking scattering interference as a mechanism for superconducting gap modulation
• Superconducting fluctuations and charge-4$e$ plaquette state at strong coupling
• Atomic scale imaging of sign-changing order parameter in superconducting FeSe with Tunneling Andreev Reflection
• Superconducting Coherence Peak in Near-Field Radiative Heat Transfer
• Superconducting phase interference effect in momentum space
• Particle-hole spectral asymmetry at the edge of multiorbital noncentrosymmetric superconductors
• The Low-Temperature Phenomenology of Gap Inhomogeneity in the Cuprate Superconductors: High-Energy Granularity, Low-Energy Homogeneity, and Spectral Kinks
• The magnetic field driven superconductor-metal transition in disordered hole-overdoped cuprates
• Visualizing Pair-breaking Scattering Interference in Bulk FeSe
• Vortex-driven periodic and aperiodic magnetoresistance oscillations in cuprates
• Probing d-wave superconducting gap of high-$T_{\mathrm{c}}$ cuprate ${\mathrm{Bi}}_2{\mathrm{Sr}}_2{\mathrm{Ca}}_2{\mathrm{Cu}}_3{\mathrm{O}}_{10+\delta }$ by resonant inelastic X-ray scattering