Testing the itinerancy of spin dynamics in superconducting Bi2212

Abstract

Much of what we know about the electronic states of high-temperature superconductors is due to photoemission and scanning tunneling spectroscopy studies of the compound Bi2212. The demonstration of well-defined quasiparticles in the superconducting state has encouraged many theorists to apply the conventional theory of metals, Fermi-liquid theory, to the cuprates. In particular, the spin excitations observed by neutron scattering at energies below twice the superconducting gap energy are commonly believed to correspond to an excitonic state involving itinerant electrons. Here, we present the first measurements of the magnetic spectral weight of optimally-doped Bi2212 in absolute units. The lack of temperature dependence of the local spin susceptibility across the superconducting transition temperature, T_c, is incompatible with the itinerant calculations. Alternatively, the magnetic excitations could be due to local moments, as the magnetic spectrum is similar to that in LBCO where quasiparticles and local moments coexist.

6 pages; revised title, abstract, various improvements to the text

References in corpus (22)

• Quantum Magnetic Excitations from Stripes in Copper-Oxide Superconductors
• Visualizing pair formation on the atomic scale in the high-Tc superconductor Bi2Sr2CaCu2O8+d
• Neutron Scattering from Magnetic Excitations in Bi_2 Sr_2 Ca_2 O_8+delta
• How Cooper pairs vanish approaching the Mott insulator in Bi2Sr2CaCu2O8+d
• Two-Dimensional Superconducting Fluctuations in Stripe-Ordered La(1.875)Ba(0.125)CuO(4)
• The effect of collective spin-1 excitations on electronic spectra in high-Tc superconductors
• Stripe order, depinning, and fluctuations in La${}_{1.875}$Ba${}_{0.125}$CuO${}_4$ and La${}_{1.875}$Ba${}_{0.075}$Sr${}_{0.050}$CuO${}_4$
• Two energy scales in the spin excitations of the high-T_c superconductor La${}_{2-x}$Sr${}_x$CuO${}_4$
• Magnetic neutron scattering in hole doped cuprate superconductors
• From incommensurate to dispersive spin-fluctuations: The high-energy inelastic spectrum in superconducting YBa2Cu3O6.5
• Resonant Spin Excitation in an Overdoped High Temperature Superconductor
• Imaging the impact on cuprate superconductivity of varying the inter-atomic distances within individual crystal unit-cells
• Theory of Neutron Scattering in the Normal and Superconducting State of YBCO
• Evidence for pairing above Tc from the dispersion in the pseudogap phase of cuprates
• Energy gaps in the failed high-Tc superconductor La1.875Ba0.125CuO4
• Dispersion of Magnetic Excitations in Superconducting Optimally Doped YBa_2Cu_3O_6.95
• Magnetic Excitations and their energy change available to Superconducting Condensation in Optimally Doped YBa${}_2$Cu${}_3$O${}_{6.95}$
• Dispersion of the odd magnetic resonant mode in near-optimally doped Bi2Sr2CaCu2O8+d
• Large Bi-2212 single crystal growth by the floating-zone technique
• Odd and even magnetic resonant modes in highly overdoped Bi_2 Sr_2 Ca Cu_2 O_{8+delta}
• Spin Susceptibility in Underdoped Cuprates: Insights from a Stripe-Ordered Crystal
• Magnetic fluctuations in n-type high-$T_c$ superconductors reveal breakdown of fermiology

Cited by in corpus (73)

• Lattice symmetry breaking in cuprate superconductors: Stripes, nematics, and superconductivity
• Intense paramagnon excitations in a large family of high-temperature superconductors
• Superconductivity in the repulsive Hubbard model: an asymptotically exact weak-coupling solution
• Persistence of magnetic excitations in La2-xSrxCuO4 from the undoped insulator to the heavily overdoped non-superconducting metal
• Appearance of fluctuating stripes at the onset of the pseudogap in the high-Tc Superconductor Bi2Sr2CaCu2O8+x
• Progress in Neutron Scattering Studies of Spin Excitations in High-Tc Cuprates
• Numerical evidence of fluctuating stripes in the normal state of high-Tc cuprate superconductors
• Hidden magnetic excitation in the pseudogap phase of a model cuprate superconductor
• Crossover between BCS Superconductor and Doped Mott Insulator of d-wave Pairing State in Two-Dimensional Hubbard Model
• High-temperature charge density wave correlations in La${}_{1.875}$Ba${}_{0.125}$CuO${}_4$ without spin-charge locking
• High-energy magnetic excitations in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$: Towards a unified description of the electronic and magnetic degrees of freedom in the cuprates
• Cuprate superconductors as viewed through a striped lens
• Insights into the High Temperature Superconducting Cuprates from Resonant Inelastic X-ray Scattering
• Superconductivity, Antiferromagnetism, and Neutron Scattering
• Intermediate Coupling Model of the Cuprates
• Hour-glass magnetic spectrum in an insulating, hole-doped antiferromagnet
• Disappearance of static magnetic order and evolution of spin fluctuations in Fe${}_{1+\delta }$Se${}_x$Te${}_{1-x}$
• Bosonic Spectral Function and The Electron-Phonon Interaction in HTSC Cuprates
• Kinetic-energy driven superconductivity in cuprate superconductors
• Hour-glass magnetic excitations induced by nanoscopic phase separation in cobalt oxides La${}_{2-x}$Sr${}_x$CoO${}_4$
• Upgrade to the MAPS neutron time-of-flight chopper spectrometer
• The effect of the pseudogap on suppressing high energy inelastic neutron scattering in superconducting YBa2Cu3O6.5
• Doping dependence of the magnetic excitations in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Neutron spectroscopy evidence on the dual nature of magnetic excitations in a van der Waals metallic ferromagnet Fe${}_{2.72}$GeTe${}_2$
• Itinerant effects and enhanced magnetic interactions in Bi-based multilayer cuprates
• Linking the pseudo-gap in the cuprates with local symmetry breaking: a commentary
• Hour-glass magnetic spectrum in a stripe-less insulating transition metal oxide
• Universal Disorder in Bi2Sr2CaCu2O8+x
• Low-energy antiferromagnetic spin fluctuations limit the coherent superconducting gap in cuprates
• The spin anisotropy of the magnetic excitations in the normal and superconducting states of optimally doped YBa2Cu3O6.9 studied by polarized neutron spectroscopy
• Disappearance of Superconductivity Due to Vanishing Coupling in the Overdoped Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$
• Magnetic Response in the Underdoped Cuprates
• Strong-coupling analysis of scanning tunneling spectra in Bi${}_2$Sr${}_2$Ca${}_2$Cu${}_3$O${}_{10+\delta }$
• Incommensurate spin correlations in highly oxidized cobaltates La${}_{2-x}$Sr${}_x$CoO${}_4$
• Evidence for local moment magnetism in superconducting FeTe0.35Se0.65
• Theoretical study of the spin and charge dynamics of two-leg ladders as probed by resonant inelastic x-ray scattering
• Nature of the spin resonance mode in CeCoIn${}_5$
• NMR Studies of pseudogap and electronic inhomogeneity in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$
• Incommensurate spin correlations induced by magnetic Fe ions substituted into overdoped Bi1.75Pb0.35Sr1.90CuO6+z
• Disorder, cluster spin glass, and hour-glass spectra in striped magnetic insulators
• Stripe disorder and dynamics in the hole-doped antiferromagnetic insulator La5/3Sr1/3CoO4
• Q=0 collective modes originating from the low-lying Hg-O band in the superconducting HgBa2CuO4+δ
• Stripes in cuprate superconductors: Excitations and dynamic dichotomy
• Stripes and electronic quasiparticles in the pseudogap state of cuprate superconductors
• Distinct Fe-induced magnetic states in the underdoped and overdoped regimes of La2-xSrxCu1-yFeyO4 revealed by muon spin relaxation
• Evidence for magnetic-field-induced decoupling of superconducting bilayers in La${}_{2-x}$Ca${}_{1+x}$Cu${}_2$O${}_6$
• Coexistence of superconductivity and short-range double-stripe spin correlations in Te-vapor annealed FeTe${}_{1-x}$Se${}_x$ with $x\le 0.2$
• Modeling a striped pseudogap state
• Superconducting pairing and the pseudogap in nematic striped La2-xSrxCuO4
• Large momentum-dependence of the main dispersion "kink" in the high-Tc superconductor Bi2Sr2CaCu2O8+δ
• Transitions from a Kondo-like diamagnetic insulator into a modulated ferromagnetic metal in ${\mathrm{FeGa}}_{3-\mathbf{y}}{\mathrm{Ge}}_{\mathbf{y}}$
• Low energy magnetic excitations from the Fe${}_{1+y-z}$(Ni/Cu)${}_z$Te${}_{1-x}$Se${}_x$ system
• Topological Doping and Superconductivity in Cuprates: An Experimental Perspective
• Intertwined states at finite temperatures in the Hubbard model
• Magnetic neutron scattering studies on the Fe-based superconductor system Fe${}_{1+y}$Te${}_{1-x}$Se${}_x$
• Quantum Critical Point revisited by the Dynamical Mean Field Theory
• Unravelling the Nature of Spin Excitations Disentangled from Charge Contributions in a Doped Cuprate Superconductor
• Dynamical spin response in cuprate superconductors from low-energy to high-energy
• Unusual Low-Energy Collective Charge Excitations in High-$T_c$ Cuprate Superconductors
• The Hour-Glass Magnetic Spectrum Arising from a Striped, Cluster Spin Glass Ground State in La1.75Sr0.25CoO4
• Magnetic field effect on Fe-induced short-range magnetic correlation and electrical conductivity in Bi${}_{1.75}$Pb${}_{0.35}$Sr${}_{1.90}$Cu${}_{0.91}$Fe${}_{0.09}$O${}_{6+y}$
• A model for the neutron resonance in HgBa${}_2$CuO${}_{4+\delta }$
• Coupled electronic and magnetic excitations in the cuprates and their role in the superconducting transition
• Inter-layer Josephson coupling in stripe-ordered superconducting cuprates
• Spin excitation spectrum of high-temperature cuprate superconductors from finite cluster simulations
• Geometric orthogonal metals: Hidden antiferromagnetism and pseudogap from fluctuating stripes
• Gapless spin excitations in superconducting La${}_{2-x}$Ca${}_{1+x}$Cu${}_2$O${}_6$ with $T_c$ up to 55 K
• Momentum and doping dependence of spin excitations in electron-doped cuprate superconductors
• Role of the upper branch of the hour-glass magnetic spectrum in the formation of the main kink in the electronic dispersion of high-T${}_{\text{c}}$ cuprate superconductors
• Empirical case for two pseudogaps in cuprate superconductors
• Theory of the hourglass dispersion of magnetic excitations in high-T${}_c$ cuprates
• Probing the pseudogap and beyond: Examining single-particle properties of the hole- and electron-doped Hubbard model
• One-electron scattering rate and normal-state linear-$T$ resistivity of the cuprates