Neutron scattering study of spin ordering and stripe pinning in superconducting La${}_{1.93}$Sr${}_{0.07}$CuO${}_4$

Abstract

The relationships among charge order, spin fluctuations, and superconductivity in underdoped cuprates remain controversial. We use neutron scattering techniques to study these phenomena in La${}_{1.93}$Sr${}_{0.07}$CuO${}_4$, a superconductor with a transition temperature of $T_c=20$~K. At $T\ll T_c$, we find incommensurate spin fluctuations with a quasielastic energy spectrum and no sign of a gap within the energy range from 0.2 to 15 meV. A weak elastic magnetic component grows below $\sim 10$~K, consistent with results from local probes. Regarding the atomic lattice, we have discovered unexpectedly strong fluctuations of the CuO${}_6$ octahedra about Cu-O bonds, which are associated with inequivalent O sites within the CuO${}_2$ planes. Furthermore, we observed a weak elastic $(3\bar{3}0)$ superlattice peak that implies a reduced lattice symmetry. The presence of inequivalent O sites rationalizes various pieces of evidence for charge stripe order in underdoped \lsco. The coexistence of superconductivity with quasi-static spin-stripe order suggests the presence of intertwined orders; however, the rotation of the stripe orientation away from the Cu-O bonds might be connected with evidence for a finite gap at the nodal points of the superconducting gap function.

arXiv comment13 pages, 11 figures; accepted version

References in corpus (74)

• Mantid - Data Analysis and Visualization Package for Neutron Scattering and $\mu SR$ Experiments
• A Common Thread: the pairing interaction for the unconventional superconductors
• Theory of Intertwined Orders in High Temperature Superconductors
• Antiferromagnetic Order Induced by an Applied Magnetic Field in a High-Temperature Superconductor
• Competing states in the t-J model: uniform d-wave state versus stripe state
• Two-Dimensional Superconducting Fluctuations in Stripe-Ordered La(1.875)Ba(0.125)CuO(4)
• The onset of the vortex-like Nernst signal above Tc in La_{2-x}Sr_xCuO_4 and Bi_2Sr_{2-y}La_yCuO_6
• The effect of collective spin-1 excitations on electronic spectra in high-Tc superconductors
• Striped superconductors: How the cuprates intertwine spin, charge and superconducting orders
• Dynamical layer decoupling in a stripe-ordered, high T_c superconductor
• Diamagnetism and Cooper pairing above $T_c$ in cuprates
• Impurity-Induced Quasiparticle Transport and Universal Limit Wiedemann-Franz Violation in d-Wave Superconductors
• Stripe order in superconducting La(2-x)Ba(x)CuO(4) for 0.095 <= x <= 0.155
• 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${}_4$
• Charge $4e$ superconductivity from pair density wave order in certain high temperature superconductors
• The Ground State of the Pseudogap in Cuprate Superconductors
• Neutron Scattering Study of Spin Density Wave Order in the Superconducting State of Excess-Oxygen-Doped La2CuO4+y
• Thermal Conductivity across the Phase Diagram of Cuprates: Low-Energy Quasiparticles and Doping Dependence of the Superconducting Gap
• Cu-63 NQR Measurement of Stripe Order Parameter in La(2-x)Sr(x)CuO(4)
• Static magnetic correlations near the insulating-superconducting phase boundary in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Charge density wave fluctuations in La2-xSrxCuO4 and their competition with superconductivity
• Observation of New Incommensurate Magnetic Correlations at the Lower Critical Concentration for Superconductivity (x=0.05) in La(2-x)Sr(x)CuO4
• Landau Theory of Stripe Phases in Cuprates and Nickelates
• Evidence for unusual superconducting correlations coexisting with stripe order in La(1.875)Ba(0.125)CuO(4)
• Direct Observation of a One Dimensional Static Spin Modulation in Insulating La1.95Sr0.05CuO4
• Universal relation between magnetic resonance and superconducting gap in unconventional superconductors
• Theory of the striped superconductor
• Universal Dispersive Excitations in the High-Temperature Superconductors
• Quantum Impurities in the Two-Dimensional Spin One-Half Heisenberg Antiferromagnet
• Distinguishing Patterns of Charge Order: Stripes or Checkerboards
• Charge Segregation, Cluster Spin-Glass and Superconductivity in La1.94Sr0.06CuO4
• Unusual magnetic susceptibility anisotropy in untwinned La_{2-x}Sr_xCuO_4 single crystals in the lightly-doped region
• Energy gaps in the failed high-Tc superconductor La1.875Ba0.125CuO4
• Rotated stripe order and its competition with superconductivity in La${}_{1.88}$Sr${}_{0.12}$CuO${}_4$
• Magnetic order and superconductivity in LSCO: a review
• Systematic Study of Short Range Antiferromagnetic Order and The Spin-Glass State in Lightly Doped La2-xSrxCuO4
• The emergence of coherent magnetic excitations in the pseudogap phase of La2-xSrxCuO4
• Spectral signatures of modulated d-wave superconducting phases
• Low temperature vortex liquid in $\mathrm{L}{\mathrm{a}}_{2-\mathrm{x}}\mathrm{S}{\mathrm{r}}_{\mathrm{x}}\mathrm{Cu}{\mathrm{O}}_4$
• 2D orbital-like magnetic order in $\mathrm{L}{\mathrm{a}}_{2-\mathrm{x}}\mathrm{S}{\mathrm{r}}_{\mathrm{x}}\mathrm{Cu}{\mathrm{O}}_4$
• Evolution from a nodeless gap to d(x2-y2) form in underdoped La(2-x)SrxCuO4
• Incommensurate Geometry of the Elastic Magnetic Peaks in Superconducting La1.88Sr0.12CuO4
• Magnetic-Field-Induced Localization of Quasiparticles in Underdoped La${}_{2-x}$Sr${}_x$CuO${}_4$ Single Crystals
• Large Bi-2212 single crystal growth by the floating-zone technique
• Magic Doping Fractions in High-Temperature Superconductors
• Energy Spectrum of Spin Fluctuations in Superconducting La2-xSrxCuO4 (0.10 < x < 0.25)
• Towards a two-dimensional superconducting state of La${}_{2-x}$Sr${}_x$CuO${}_2$ in a moderate external magnetic field
• Theory of incommensurate magnetic correlations across the insulator-superconductor transition in underdoped La_{2-x}Sr_xCuO_4
• Field-Induced Thermal Metal-to-Insulator Transition in Underdoped LSCO
• Uniaxial linear resistivity of superconducting La(1.905)Ba(0.095)CuO(4) induced by an external magnetic field
• Spin Fluctuations in the Underdoped High-Tc Cuprate La1.93Sr0.07CuO4
• Spin Susceptibility in Underdoped Cuprates: Insights from a Stripe-Ordered Crystal
• Emergence of superconductivity from the dynamically heterogeneous insulating state in La_{2-x}Sr_{x}CuO_{4}
• Magnetic-field-induced spin excitations and renormalized spin gap of the underdoped superconductor La${}_{1.895}$Sr${}_{0.105}$CuO${}_4$
• Reconciliation of local and long range tilt correlations in underdoped La2-xBaxCuO4
• Dimensional cross-over and charge order in half-doped Manganites and Cobaltites
• Structural instability associated with the tilting of CuO6 octahedra in La2-xSrxCuO4
• Phase transitions in superconductor liquid crystals
• Neutron Scattering Evidence for a Periodically-Modulated Superconducting Phase in the Underdoped Cuprate La${}_{1.905}$Ba${}_{0.095}$CuO${}_4$
• Evidence of a critical hole concentration in underdoped YBa${}_2$Cu${}_3$O${}_y$ single crystals revealed by ${}^{63}$Cu NMR
• Probing the connections between superconductivity, stripe order, and structure in La1.905Ba0.095Cu1-yZnyO4
• Bulk charge stripe order competing with superconductivity in La2-xSrxCuO4 (x=0.12)
• Thermal conductivity and competing orders in d-wave superconductors
• Spin and pair density wave glasses
• Breakdown of the universal Josephson relation in spin ordered cuprate superconductors
• Neutron scattering study of soft phonons and diffuse scattering in insulating La${}_{1.95}$Sr${}_{0.05}$CuO${}_4$
• The geometric order of stripes and Luttinger liquids
• Heat transport of La${}_{2-y}$Eu${}_y$CuO${}_4$ and La${}_{1.88-y}$Eu${}_y$Sr${}_{0.12}$CuO${}_4$ single crystals
• ${}^{139}$La NMR investigation in underdoped La${}_{1.93}$Sr${}_{0.07}$CuO${}_4$
• The Fincher-Burke spin excitations and omega/T scaling in the insulating 5% Sr-doped La2CuO4
• Quasiparticle heat transport in the mixed state of high $T_c$ superconductors
• NMR study on the local structure in La-based high-Tc cuprates
• "Nodal gap" induced by the incommensurate diagonal spin density modulation in underdoped high-$T_c$ superconductors
• Inhomogeneous slowing down of spin fluctuations induced by charge stripe order in 1/8-doped lanthanum cuprates

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• Tilted stripes origin in ${\mathrm{La}}_{1.88}{\mathrm{Sr}}_{0.12}{\mathrm{CuO}}_4$ revealed by anisotropic next-nearest neighbor hopping
• Gradual emergence of superconductivity in underdoped LSCO
• The Inward Dispersion of the Neutron Scattering Experiments in HTSC Cuprates
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