Superconductivity, Antiferromagnetism, and Neutron Scattering

Abstract

High-temperature superconductivity in both the copper-oxide and the iron-pnictide/chalcogenide systems occurs in close proximity to antiferromagnetically ordered states. Neutron scattering has been an essential technique for characterizing the spin correlations in the antiferromagnetic phases and for demonstrating how the spin fluctuations persist in the superconductors. While the nature of the spin correlations in the superconductors remains controversial, the neutron scattering measurements of magnetic excitations over broad ranges of energy and momentum transfer provide important constraints on the theoretical options. We present an overview of the neutron scattering work on high-temperature superconductors and discuss some of the outstanding issues.

18 pages, to appear as a Current Perspective in J. Magn. Magn. Mater

References in corpus (59)

• Magnetic Order versus superconductivity in the Iron-based layered La(O1-xFx)FeAs systems
• Unconventional pairing originating from disconnected Fermi surfaces in superconducting LaFeAsO${}_{1-x}$F${}_x$}
• High-temperature superconductivity in iron-based materials
• A Common Thread: the pairing interaction for the unconventional superconductors
• Magnetic order in BaFe2As2, the parent compound of the FeAs based superconductors in a new structural family
• Structural and magnetic phase diagram of CeFeAsO1-xFx and its relationship to high-temperature superconductivity
• Magnetism, superconductivity, and pairing symmetry in Fe-based superconductors
• Strong Correlations and Magnetic Frustration in the High Tc Iron Pnictides
• Incommensurate magnetic order in the alpha-Fe(Te,Se) superconductor systems
• First-order magnetic and structural phase transitions in Fe${}_{1+y}$Se${}_x$Te${}_{1-x}$
• Magnetism and its microscopic origin in iron-based high-temperature superconductors
• Determination of the phase diagram of the electron doped superconductor Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Magnetic order in the pseudogap phase of high-$T_C$ superconductors
• Lattice symmetry breaking in cuprate superconductors: Stripes, nematics, and superconductivity
• Coherence-incoherence crossover in the normal state of iron-oxypnictides and importance of the Hund's rule coupling
• Ising and Spin orders in Iron-based Superconductors
• The electronic phase diagram of the LaO1-xFxFeAs superconductor
• Two Gaps Make a High Temperature Superconductor?
• Spin-orbital frustrations and anomalous metallic state in iron-pnictide superconductors
• Coexistence of the spin-density-wave and superconductivity in the (Ba,K)Fe2As2
• Two-Dimensional Superconducting Fluctuations in Stripe-Ordered La(1.875)Ba(0.125)CuO(4)
• Striped superconductors: How the cuprates intertwine spin, charge and superconducting orders
• Coexistence of static magnetism and superconductivity in SmFeAsO1-xFx as revealed by muon spin rotation
• Magnetism and Charge Dynamics in Iron Pnictides
• The Unprecedented Giant Coupling of Fe-spin State and the As-As Hybridization in Iron-Pnictide
• Theoretical evidence for strong correlations and incoherent metallic state in FeSe
• The Ground State of the Pseudogap in Cuprate Superconductors
• Two-dimensional resonant magnetic excitation in BaFe1.84Co0.16As2
• Spin Gap and Resonance at the Nesting Wavevector in Superconducting FeSe0.4Te0.6
• Two energy scales in the spin excitations of the high-T_c superconductor La${}_{2-x}$Sr${}_x$CuO${}_4$
• Evidence for unusual superconducting correlations coexisting with stripe order in La(1.875)Ba(0.125)CuO(4)
• Unprecedented anisotropic metallic state in BaFe2As2 revealed by optical spectroscopy
• Anomalous High-Energy Spin Excitations in La2CuO4
• Unified Picture for Magnetic Correlations in Iron-Based Superconductors
• Three-dimensional Resonance in superconducting BaFe${}_{1.9}$Ni${}_{0.1}$As${}_2$
• Magnetic neutron scattering in hole doped cuprate superconductors
• Itinerant magnetic excitations in antiferromagnetic CaFe2As2
• Neutron Studies of the Iron-based Family of High TC Magnetic Superconductors
• Structure and Magnetic Order in the NdFeAs(O,F) Superconductor System
• Nature of magnetic excitations in superconducting BaFe${}_{1.9}$Ni${}_{0.1}$As${}_2$
• On the multi-orbital band structure and itinerant magnetism of iron-based superconductors
• Coexistence of magnetic fluctuations and superconductivity in the pnictide high temperature superconductor SmFeAsO${}_{1-x}$F${}_x$ measured by muon spin rotation
• Neutron Scattering Resonance and the Fe-pnictide Superconducting Gap
• Disappearance of antiferromagnetic spin excitations in over-doped La${}_{2-x}$Sr${}_x$CuO${}_4$
• Resonant magnetic excitations at high energy in superconducting $\mathbf{YB}{\mathbf{a}}_2\mathbf{C}{\mathbf{u}}_3{\mathbf{O}}_{6.85}$
• Theory of itinerant magnetic excitations in the SDW phase of iron-based superconductors
• Testing the itinerancy of spin dynamics in superconducting Bi2212
• The Persistence of High-Frequency Spin Fluctuations in Overdoped La${}_{2-x}$Sr${}_x$CuO${}_4$ ($x$=0.22)
• Itinerant Spin Excitations in SrFe2As2 Measured by Inelastic Neutron Scattering
• Competing magnetic ground states in non-superconducting Ba(Fe1-xCrx)2As2
• The emergence of coherent magnetic excitations in the pseudogap phase of La2-xSrxCuO4
• Magnetic ordering and structural distortion in Ru doped BaFe2As2 single crystals studied by Neutron and X-ray diffraction
• Heat capacity study of BaFe${}_2$As${}_2$: effects of annealing
• Spin and Charge Dynamics Ruled by Antiferromagnetic Order in Iron Pnictides
• High-energy magnetic excitations from dynamic stripes in LBCO (x=1/8)
• Antiferromagnetic spin excitations in single crystals of nonsuperconducting Li1-xFeAs
• Orbital currents, anapoles, and magnetic quadrupoles in CuO
• Evolution of superconducting correlations within magnetic-field-decoupled CuO(2) layers of La(1.905)Ba(0.095)CuO(4)
• Magnetic hour-glass dispersion and its relation to high-temperature superconductivity in iron-tuned Fe${}_{1+y}$Te${}_{0.7}$Se${}_{0.3}$

Cited by in corpus (49)

• Antiferromagnetic order and spin dynamics in iron-based superconductors
• Iron based high transition temperature superconductors
• A magnetic origin for high temperature superconductivity in iron pnictides
• Spin fluctuations in iron pnictides and chalcogenides: From antiferromagnetism to superconductivity
• Neutron Scattering Studies on the High-$T_c$ Superconductor La${}_3$Ni${}_2$O${}_{7-\delta }$ at Ambient Pressure
• Persistent paramagnons deep in the metallic phase of Sr${}_{2-x}$La${}_x$IrO${}_4$
• Insights into the High Temperature Superconducting Cuprates from Resonant Inelastic X-ray Scattering
• The simultaneous measurement of energy and linear polarization of the scattered radiation in resonant inelastic soft x-ray scattering
• Neutron spin resonance in a quasi-two-dimensional iron-based superconductor
• Electron doping evolution of the magnetic excitations in BaFe2-xNixAs2
• Odd and even modes of neutron spin resonance in the bilayer iron-based superconductor CaKFe${}_4$As${}_4$
• Robust Upward Dispersion of the Neutron Spin Resonance in the Heavy Fermion Superconductor Ce${}_{1-x}$Yb${}_x$CoIn${}_5$
• The magnetic moment enigma in Fe-based high temperature superconductors
• Phase diagram of Eu magnetic ordering in Sn-flux-grown Eu(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$ single crystals
• Tuning spin excitations in magnetic films by confinement
• Intra-layer doping effects on the high-energy magnetic correlations in NaFeAs
• Local and collective magnetism of EuFe${}_2$As${}_2$
• Ab initio description of the Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ electronic structure
• Electron doping evolution of the magnetic excitations in NaFe${}_{1-x}$Co${}_x$As
• Presence of magnetic excitations in SmFeAsO
• The dual nature of magnetism in a uranium heavy fermion system
• Thermal evolution of antiferromagnetic correlations and tetrahedral bond angles in superconducting FeTe${}_{1-x}$Se${}_x$
• Reciprocity between local moments and collective magnetic excitations in the phase diagram of BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Electron doping evolution of the neutron spin resonance in NaFe${}_{1-x}$Co${}_x$As
• Coexistence of superconductivity and short-range double-stripe spin correlations in Te-vapor annealed FeTe${}_{1-x}$Se${}_x$ with $x\le 0.2$
• Phase diagrams of a 2D Ising spin-pseudospin model
• Low energy magnetic excitations from the Fe${}_{1+y-z}$(Ni/Cu)${}_z$Te${}_{1-x}$Se${}_x$ system
• Gapless spin-excitations in the superconducting state of a quasi-one-dimensional spin-triplet superconductor
• Neutron Scattering Studies of Spin-Phonon Hybridization and Superconducting Spin-Gaps in High Temperature Superconductor $L{a}_{2-x}(Sr,Ba{)}_{x}Cu{O}_4$
• Spin-Excitations Anisotropy in the Bilayer Iron-Based Superconductor CaKFe${}_4$As${}_4$
• Tuning the magnetic and structural phase transitions of PrFeAsO via Fe/Ru spin dilution
• Effect of electron correlations on spin excitation bandwidth in Ba${}_{0.75}$K${}_{0.25}$Fe${}_2$As${}_2$ as seen via time-of-flight inelastic neutron scattering
• Evidence of electron interaction with an unidentified bosonic mode in superconductor CsCa${}_2$Fe${}_4$As${}_4$F${}_2$
• Neutron spin resonance as a probe of superconducting gap anisotropy in partially detwinned electron underdoped NaFe${}_{0.985}$Co${}_{0.015}$As
• One- and two-particle correlation functions in the cluster perturbation theory for cuprates
• Unexpected Enhancement of Three-Dimensional Low-Energy Spin Correlations in Quasi-Two-Dimensional Fe${}_{1+y}$Te${}_{1-x}$Se${}_x$ System at High Temperature
• Critical behavior of a 2D spin-pseudospin model in a strong exchange limit
• Competition between the Spin and Pseudospin Subsystems in a Model Cuprate
• Ferromagnetic inter-layer coupling in FeSe${}_{1-x}$S${}_x$ superconductors revealed by inelastic neutron scattering
• Enhanced low-energy magnetic excitations evidencing the Cu-induced localization in an Fe-based superconductor Fe${}_{0.98}$Te${}_{0.5}$Se${}_{0.5}$
• Evolution of structure, magnetic and transport properties of Fe${}_{1-x}$Mn${}_x$Se
• Preformed Cooper Pairs in a Triclinic Iron Pnictide Superconductor
• Spin fluctuations in the 112-type iron-based superconductor Ca${}_{0.82}$La${}_{0.18}$Fe${}_{0.96}$Ni${}_{0.04}$As${}_2$
• Spin waves in Dirac semimetal Ca${}_{0.6}$Sr${}_{0.4}$MnSb${}_2$ investigated with neutrons by the diffraction method
• Crystal growth and characterization of a hole-doped iron-based superconductor Ba(Fe${}_{0.875}$Ti${}_{0.125}$)${}_2$As${}_2$
• Three-dimensional spin susceptibility in Ba${}_{0.75}$K${}_{0.25}$Fe${}_2$As${}_2$: Out-of-plane modulation revealed by neutron spectroscopy and theoretical modeling
• Spin Fluctuations in the Rare-Earth Doped Bilayer Nickelates
• Variational Monte Carlo study of spin dynamics in underdoped cuprates
• Feedback of non-local $d_{xy}$ nematicity on the magnetic anisotropy in FeSe