The connection between superconducting phase correlations and spin excitations in YBa${}_2$Cu${}_3$O${}_{6.6}$: A magnetic field study

Abstract

One of the most striking universal properties of the high-transition-temperature (high-$T_c$) superconductors is that they are all derived from the hole-doping of their insulating antiferromagnetic (AF) parent compounds. From the outset, the intimate relationship between magnetism and superconductivity in these copper-oxides has intrigued researchers. Evidence for this link comes from neutron scattering experiments that show the unambiguous presence of short-range AF correlations (excitations) in cuprate superconductors. Even so, the role of such excitations in the pairing mechanism and superconductivity is still a subject of controversy. For YBa${}_2$Cu${}_3$O${}_{6+x}$, where $x$ controls the hole-doping level, the most prominent feature in the magnetic excitations spectra is the ``resonance''. Here we show that for underdoped YBa${}_2$Cu${}_3$O${}_{6.6}$, where $x$ and $T_c$ are below the optimal values, modest magnetic fields suppress the resonance significantly, much more so for fields approximately perpendicular rather than parallel to the CuO${}_2$ planes. Our results indicate that the resonance measures pairing and phase coherence, suggesting that magnetism plays an important role in the superconductivity of cuprates. The persistence of a field effect above $T_c$ favors mechanisms with preformed pairs in the normal state of underdoped cuprates.

12 pages, 4 figures, Nature (in press)

References in corpus (3)

• The Magnetic Excitation Spectrum and Thermodynamics of High-$T_c$ Superconductors
• On Measuring Condensate Fraction in Superconductors
• Thermodynamic Constraints on the Magnetic Field Dependence of the Neutron Resonance in Cuprate Superconductors

Cited by in corpus (66)

• Superconductivity in Iron Compounds
• How to detect fluctuating order in the high-temperature superconductors
• Antiferromagnetic order and spin dynamics in iron-based superconductors
• Resonant Spin Excitation in the High Temperature Superconductor Ba0.6K0.4Fe2As2
• The effect of collective spin-1 excitations on electronic spectra in high-Tc superconductors
• Evolution of the resonance and incommensurate spin fluctuations in superconducting YBa${}_2$Cu${}_3$O${}_{6+x}$
• Magnetism in Fe-based superconductors
• SO(5) Theory of Antiferromagnetism and Superconductivity
• Unconventional Superconductivity
• Two-dimensional resonant magnetic excitation in BaFe1.84Co0.16As2
• High-transition-temperature superconductivity in the absence of the magnetic-resonance mode
• Three-dimensional Resonance in superconducting BaFe${}_{1.9}$Ni${}_{0.1}$As${}_2$
• Magnetic neutron scattering in hole doped cuprate superconductors
• Dynamic Stripes and Resonance in the Superconducting and Normal Phases of YBa2Cu3O6.5 Ortho-II Superconductor
• Electrodynamics of the Nodal Metal in Weakly Doped High-$T_c$ Cuprates
• Interplay between magnetism and superconductivity in iron-chalcogenide superconductors: crystal growth and characterizations
• What the resonance peak does
• Magnetic-field-enhanced incommensurate magnetic order in the underdoped high-temperature superconductor YBa(2)Cu(3)O(6.45)
• Where is the spectral weight in magnetic neutron scattering in the cuprates?
• Magnetic fluctuations from stripes in cuprates
• What the resonance peak cannot do
• Evidence for an incommensurate magnetic resonance in La(2-x)Sr(x)CuO(4)
• Three-dimensionality of field-induced magnetism in a high-temperature superconductor
• Magnetic Order in YBa${}_2$Cu${}_3$O${}_{6+x}$ Superconductors
• Magnetic field splitting of the spin-resonance in CeCoIn5
• Electronically competing phases and their magnetic field dependence in electron-doped nonsuperconducting and superconducting Pr0.88LaCe0.12CuO4
• Superfluid density of high-Tc cuprate systems: implication on condensation mechanisms, heterogeneity and phase diagram
• Effect of magnetic field on the spin resonance in FeTe(0.5)Se(0.5) as seen via inelastic neutron scattering
• Effect of a magnetic field on the long-range magnetic order in insulating Nd2CuO4, nonsuperconducting and superconducting Nd1.85Ce0.15CuO4
• Observation of superconducting collective modes from competing pairing instabilities in single-layer NbSe${}_2$
• Spin and Current Correlation Functions in the \bf d-density Wave State of the Cuprates
• Resonance as a probe of the electron superconducting gap in BaFe1.9Ni0.1As2
• Pseudogap phenomena in ultracold atomic Fermi gases
• Polarized neutron scattering studies of magnetic excitations in electron-overdoped superconducting BaFe${}_{1.85}$Ni${}_{0.15}$As${}_2$
• Evolution of the spin resonance in CeCoIn${}_5$ under magnetic field
• Superconductivity and electronic fluctuations in Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$ studied by Raman scattering
• Developments in the negative-U modelling of the cuprate HTSC systems
• Thermally generated vortices, gauge invariance and electron spectral function in the pseudo-gap regime
• Dynamic Superconductivity Responses in Photo-excited Optical Conductivity and Nernst Effect
• Quantum spin correlations through the superconducting-normal phase transition in electron-doped superconducting Pr0.88LaCe0.12CuO4-d
• Drum vortons in high density QCD
• Inelastic Neutron Scattering Studies of the Spin and Lattice Dynamics in Iron Arsenide Compounds
• Theory of Static and Dynamic Antiferromagnetic Vortices in LSCO Superconductors
• In-plane magnetic field effect on the neutron spin resonance in optimally doped FeSe${}_{0.4}$Te${}_{0.6}$ and BaFe${}_{1.9}$Ni${}_{0.1}$As${}_2$ superconductors
• Extraction of Electron Self-Energy and Gap Function in the Superconducting State of Bi_2Sr_2CaCu_2O_8 Superconductor via Laser-Based Angle-Resolved Photoemission
• Doping evolution of the phonon density of states and electron-lattice interaction in Nd${}_{2-x}$Ce${}_x$CuO${}_{4+\delta }$
• Quasi-One-Dimensional Topological-Excitation Liquid in Bi2212 from Tunneling Spectroscopy
• Coexistence of superconductivity and short-range double-stripe spin correlations in Te-vapor annealed FeTe${}_{1-x}$Se${}_x$ with $x\le 0.2$
• c-Axis Phase Coherence and Spin Fluctuations in Cuprates
• Magnetic field resonantly enhanced free spins in underdoped YBa${}_2$Cu${}_3$O${}_{6+x}$
• What can we learn from comparison between cuprates and He films ? : phase separation and fluctuating superfluidity
• Strong-coupling Effects in cuprate High-$T_c$ Superconductors by magnetooptical studies
• Low energy magnetic excitations from the Fe${}_{1+y-z}$(Ni/Cu)${}_z$Te${}_{1-x}$Se${}_x$ system
• Influence of vortices on the magnetic resonance in cuprate superconductors
• Magnetic neutron scattering studies on the Fe-based superconductor system Fe${}_{1+y}$Te${}_{1-x}$Se${}_x$
• Anisotropic effect of a magnetic field on the neutron spin resonance in FeSe
• Vortons in the SO(5) model of high temperature superconductivity
• Pressure induced renormalization of energy scales in the unconventional superconductor FeTe0.6Se0.4
• Unusual suppression of a spin resonance mode with magnetic field in underdoped NaFe${}_{1-x}$Co${}_x$As: Evidence for orbital-selective pairing
• The Creation of Defects with Core Condensation
• Separation of magnetic and superconducting behaviour in YBCO6.33 (Tc=8.4 K)
• Two component spin-fermion model for high-$T_c$ cuprates: Applications to neutron scattering and ARPES experiments
• Superconducting energy gap versus pseudogap in hole-doped cuprates as revealed by infrared spectroscopy
• Magnetic field induced incommensurate resonance in cuprate superconductors
• Preformed Cooper Pairs in a Triclinic Iron Pnictide Superconductor
• Ground and Applied-Field-Driven Magnetic States of Antiferromagnets