Charge excitations associated with charge stripe order in the 214-type nickelate and superconducting cuprate

Abstract

Charge excitations were studied for stipe-ordered 214 compounds, La${}_{5/3}$Sr${}_{1/3}$NiO${}_4$ and 1/8-doped La${}_2$(Ba, Sr)${}_x$CuO${}_4$ using resonant inelastic x-ray scattering in hard x-ray regime. We have observed charge excitations at the energy transfer of 1 eV with the momentum transfer corresponding to the charge stripe spatial period both for the diagonal (nikelate) and parallel (cuprates) stripes. These new excitations can be interpreted as a collective stripe excitation or charge excitonic mode to a stripe-related in-gap state.

5 pages, 4 figures

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Cited by in corpus (11)

• Resonant Inelastic X-ray Scattering Studies of Elementary Excitations
• Determination of the optical properties of La{2-x}Ba{x}CuO{4} for several dopings, including the anomalous x=1/8 phase
• Magnetic nature of the 500 meV peak in $\mathrm{L}{\mathrm{a}}_{2-\mathrm{x}}\mathrm{S}{\mathrm{r}}_{\mathrm{x}}\mathrm{Cu}{\mathrm{O}}_4$ observed with resonant inelastic x-ray scattering at the Cu $K$-edge
• Doping dependence of magnetic excitations of 1D cuprates as probed by Resonant Inelastic x-ray Scattering
• Charge and orbital order in transition metal oxides
• Electronic Structure of Doped Lanthanum Cuprates Studied with Resonant Inelastic X-Ray Scattering
• Charge-transfer and Mott-Hubbard Excitations in FeBO3: Fe K edge Resonant Inelastic X-ray Scattering Study
• Resonant inelastic X-ray scattering study of intra-band charge excitations in hole-doped high-Tc cuprates
• Localized character of charge excitations for La${}_{2-x}$Sr${}_x$NiO${}_{4+\delta }$ revealed by oxygen $K$-edge resonant inelastic X-ray scattering
• Analysis of Resonant Inelastic X-Ray Scattering in Stripe-Ordered Nickelate
• Stripes and Pairing in High Temperature Superconductors