Exploring Quasiparticles in High-Tc Cuprates Through Photoemission, Tunneling, and X-ray Scattering Experiments

Abstract

One of the key challenges in the field of high-temperature superconductivity is understanding the nature of fermionic quasiparticles. Experiments consistently demonstrate the existence of a second energy scale, distinct from the d-wave superconducting gap, that persists above the transition temperature into the "pseudogap" phase. One common class of models relates this energy scale to the quasiparticle gap due to a competing order, such as the incommensurate "checkerboard" order observed in scanning tunneling microscopy (STM) and resonant elastic X-ray scattering (REXS). In this paper we show that these experiments are better described by identifying the second energy scale with the inverse lifetime of quasiparticles. We develop a minimal phenomenological model that allows us to quantitatively describe STM and REXS experiments and discuss their relation with photoemission spectroscopy. Our study refocuses questions about the nature of the pseudogap phase to the study of the origin of inelastic scattering.

39 pages, 15 figures, updated references

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Cited by in corpus (13)

• Resonant x-ray scattering studies of charge order in cuprates
• Incipient charge order observed by NMR in the normal state of YBa2Cu3Oy
• The symmetry of charge order in cuprates
• Doping dependent charge order correlations in electron-doped cuprates
• Friedel Oscillations as a Probe of Fermionic Quasiparticles
• Evolution of charge order topology across a magnetic phase transition in cuprate superconductors
• Distinct fingerprints of charge density waves and electronic standing waves in ZrTe${}_3$
• Holographic Maps of Quasiparticle Interference
• Adiabatic variation of the charge-density-wave phase diagram in the 123 cuprate (Ca${}_x$La${}_{1-x}$)(Ba${}_{1.75-x}$La${}_{0.25+x}$)Cu${}_3$O${}_y$
• Anomalous softening of phonon-dispersion in cuprate superconductors
• Quasiparticle interference of heavy fermions in resonant X-ray scattering
• Doping-dependent phonon anomaly and charge-order phenomena in the HgBa${}_2$CuO${}_{4+\delta }$ and HgBa${}_2$CaCu${}_2$O${}_{6+\delta }$
• Minimal model of charge and pairing density waves in X-ray scattering experiments