Spin correlations among the charge carriers in an ordered stripe phase

Abstract

We have observed a diffuse component to the low-energy magnetic excitation spectrum of stripe-ordered La5/3Sr1/3NiO4 probed by neutron inelastic scattering. The diffuse scattering forms a square pattern with sides parallel and perpendicular to the stripe directions. The signal is dispersive, with a maximum energy of ~10 meV. Probed at 2 meV the scattering decreases in strength with increasing temperature, and is barely visible at 100 K. We argue that the signal originates from dynamic, quasi- one-dimensional, antiferromagnetic correlations among the stripe electrons.

4 pages, 4 figures. To be published in Physical Review Letters

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• Spin Dynamics in an Ordered Stripe Phase
• Spin dynamics in stripe-ordered La5/3Sr1/3NiO4
• High-Energy Spin Dynamics in La${}_{1.69}$Sr${}_{0.31}$NiO${}_4$
• Freezing of a Stripe Liquid
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• Superconductivity of a Metallic Stripe Embedded in an Antiferromagnet

Cited by in corpus (25)

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• Insights into the High Temperature Superconducting Cuprates from Resonant Inelastic X-ray Scattering
• Spin Waves in Striped Phases
• Direct observation of dynamic charge stripes in La2-xSrxNiO4
• Neutron scattering studies on stripe phases in non-cuprate materials
• Orbital Ordering, New Phases, and Stripe Formation in Doped Layered Nickelates
• Doping Dependence of Collective Spin and Orbital Excitations in Spin 1 Quantum Antiferromagnet La${}_{2-x}$Sr${}_x$NiO${}_4$ Observed by X-rays
• Weak ferromagnetic spin and charge stripe order in La[sub 5/3]Sr[sub 1/3]NiO[sub 4]
• Unidirectional Diagonal Order and 3D Stacking of Charge Stripes in Orthorhombic Pr1.67Sr0.33NiO4 and Nd1.67Sr0.33NiO4
• Magnetic spectrum of the two-dimensional antiferromagnet La2CoO4 studied by inelastic neutron scattering
• Magnetic excitations in stripe-ordered La${}_{1.875}$Ba${}_{0.125}$CuO${}_4$ studied using resonant inelastic x-ray scattering
• Spin Dynamics of Half-Doped La3/2Sr1/2NiO4
• Ultrafast Dynamics of Vibrational Symmetry Breaking in a Charge-ordered Nickelate
• Magnetization of La(2-x)Sr(x)NiO(4+ delta) (0 < x < 0.5) and observation of novel memory effects
• Superconductivity from charge order in cuprates
• Nature and impact of stripe freezing in La${}_{1.67}$Sr${}_{0.33}$NiO${}_4$
• Topological Doping and Superconductivity in Cuprates: An Experimental Perspective
• Low energy, quasi-one-dimensional, spin dynamics in charge-ordered La(2-x)Sr(x)NiO(4)
• Magnetic phase diagram of La${}_{2-x}$Sr${}_x$CoO${}_4$ revised using muon-spin relaxation
• Magnetic excitations of the charge stripe electrons below half doping in La(2-x)Sr(x)NiO4, x = 0.45 and x = 0.4
• Stability of charge-stripe ordered La2-xSrxNiO4+delta at one third doping
• The Temperature Evolution of the Out-of-Plane Correlation Lengths of Charge-Stripe Ordered La(1.725)Sr(0.275)NiO(4)
• Evidence of Magnetic Correlations Among the Charge Stripe Electrons of Charge-Stripe Ordered La2NiO4.11