Observation of an unconventional metal-insulator transition in overdoped CuO_2 compounds

Abstract

The electron dynamics in the normal state of Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ is studied by inelastic light scattering over a wide range of doping. A strong anisotropy of the electron relaxation is found which cannot be explained by single-particle properties alone. The results strongly indicate the presence of an unconventional quantum-critical metal-insulator transition where "hot" (antinodal) quasiparticles become insulating while "cold" (nodal) quasiparticles remain metallic. A phenomenology is developed which allows a quantitative understanding of the Raman results and provides a scenario which links single- and many-particle properties.

4 pages, 3 gif figures

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Cited by in corpus (40)

• Inelastic Light Scattering From Correlated Electrons
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• Rapid change of superconductivity and electron-phonon coupling through 19% doping in Bi2212
• Pseudogap opening and formation of Fermi arcs as an orbital-selective Mott transition in momentum space
• Exploring the Dark Side of Cuprate Superconductors: s-wave Symmetry of the Pseudogap
• Physics of the Pseudogap in 8-site Cluster Dynamical Mean Field Theory: photoemission, Raman scattering, in-plane and c-axis conductivity
• Dynamical Properties of Charged Stripes in La_{2-x}Sr_xCuO_4
• Nematic Fluctuations in the Cuprate Superconductor Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$
• Evolution of the gaps through the cuprate phase-diagram
• Two-particle response in Cluster Dynamical Mean-Field Theory: Formalism and application to the Raman Response of High-temperature Superconductors
• Electron interactions and charge ordering in La${}_{2-x}$Sr${}_x$CuO${}_4$
• A Raman study of the temperature and magnetic field dependence of electronic and lattice properties in MnSi
• Vertical temperature-boundary of the pseudogap under the superconducting dome of the Bi2Sr2CaCu2O8+d phase-diagram
• Quantitative Raman measurements of the evolution of the Cooper-pairs density with doping in Bi2Sr2CaCu2O8+d superconductors
• High-T${}_c$ cuprates: a story of two electron subsystems
• Relationship among superconductivity, pseudogap, and high-energy magnetic fluctuations in a model high-Tc superconductor from electronic Raman scattering
• Frustrated spin order and stripe fluctuations in FeSe
• Resonance mode in $B_{1g}$ Raman scattering -- a way to distinguish between spin-fluctuation and phonon-mediated $d-$wave superconductivity
• First-Order Type Effects in YBa${}_2$Cu${}_3$O${}_{6+x}$ at the Onset of Superconductivity
• Superconducting and Pseudogap effects on the interplane conductivity and Raman scattering cross section in the two dimensional Hubbard Model
• Nonresonant inelastic light scattering in the Hubbard model
• Electronic Raman Scattering in copper oxide Superconductors: Understanding the Phase Diagram
• Realization of the orbital-selective Mott state at the molecular level in Ba${}_3$LaRu${}_2$O${}_9$
• Uncovering a pressure-tuned electronic transition in BiSrYCu2O8 using Raman scattering and x-ray diffraction
• An Investigation of Particle-Hole Asymmetry in the Cuprates via Electronic Raman Scattering
• Optical sum rules that relate to the potential energy of strongly correlated systems
• Unambiguous connection between the Fermi surface topology and the pseudogap in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+d}$
• Quantitative comparison of single- and two-particle properties in the cuprates
• Optical symmetries and anisotropic transport in high-Tc superconductors
• Hybridizing localized and itinerant electrons: a recipe for pseudogaps
• Dependence of the superconducting effective mass on doping in cuprates
• Signatures of a momentum independent pseudogap in the electronic density of states and Raman spectroscopy of the underdoped cuprates
• Double pair breaking peak in Raman scattering spectra of triple layer cuprate Bi2223
• Electronic Raman response in anisotropic metals
• Localized states in the Mott insulator κ-(BEDT-TTF)_2Cu[N(CN)_2]Cl as probed by photoluminescence
• Pseudogap in cuprates driven by d-wave flux-phase order proximity effects: A theoretical analysis from Raman and ARPES experiments
• Superconducting gap of overdoped Tl2Ba2CuO6+d observed by Raman scattering
• Spin singlet and quasiparticles excitations in cuprate superconductors
• Ultrafast Raman probe of the photoinduced superconducting to normal state transition in the cuprate Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$