Quenched Magnon excitations by oxygen sublattice reconstruction in (SrCuO 2) n /(SrTiO 3) 2 superlattices

M. Dantz; J. Pelliciari; D. Samal; V. Bisogni; Y. Huang; P. Olalde-Velasco; V. N. Strocov; G. Koster; T. Schmitt

doi:10.1038/srep32896

Quenched Magnon excitations by oxygen sublattice reconstruction in (SrCuO ₂) n /(SrTiO ₃) ₂ superlattices

M. Dantz^*, J. Pelliciari, D. Samal, V. Bisogni, Y. Huang, P. Olalde-Velasco, V. N. Strocov, G. Koster, T. Schmitt

^*Corresponding author for this work

Inorganic Materials Science

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Abstract

The recently discovered structural reconstruction in the cuprate superlattice (SrCuO ₂) _n /(SrTiO ₃) ₂ has been investigated across the critical value of n = 5 using resonant inelastic x-ray scattering (RIXS). We find that at the critical value of n, the cuprate layer remains largely in the bulk-like two-dimensional structure with a minority of Cu plaquettes being reconstructed. The partial reconstruction leads to quenching of the magnons starting at the Î "-point due to the minority plaquettes acting as scattering points. Although comparable in relative abundance, the doped charge impurities in electron-doped cuprate superconductors do not show this quenching of magnetic excitations.

Original language	English
Article number	32896
Journal	Scientific reports
Volume	6
DOIs	https://doi.org/10.1038/srep32896
Publication status	Published - 12 Sept 2016

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title = "Quenched Magnon excitations by oxygen sublattice reconstruction in (SrCuO 2) n /(SrTiO 3) 2 superlattices",

abstract = "The recently discovered structural reconstruction in the cuprate superlattice (SrCuO 2) n /(SrTiO 3) 2 has been investigated across the critical value of n = 5 using resonant inelastic x-ray scattering (RIXS). We find that at the critical value of n, the cuprate layer remains largely in the bulk-like two-dimensional structure with a minority of Cu plaquettes being reconstructed. The partial reconstruction leads to quenching of the magnons starting at the {\^I} {"}-point due to the minority plaquettes acting as scattering points. Although comparable in relative abundance, the doped charge impurities in electron-doped cuprate superconductors do not show this quenching of magnetic excitations.",

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T1 - Quenched Magnon excitations by oxygen sublattice reconstruction in (SrCuO 2) n /(SrTiO 3) 2 superlattices

AU - Dantz, M.

AU - Pelliciari, J.

AU - Samal, D.

AU - Bisogni, V.

AU - Huang, Y.

AU - Olalde-Velasco, P.

AU - Strocov, V. N.

AU - Koster, G.

AU - Schmitt, T.

PY - 2016/9/12

Y1 - 2016/9/12

N2 - The recently discovered structural reconstruction in the cuprate superlattice (SrCuO 2) n /(SrTiO 3) 2 has been investigated across the critical value of n = 5 using resonant inelastic x-ray scattering (RIXS). We find that at the critical value of n, the cuprate layer remains largely in the bulk-like two-dimensional structure with a minority of Cu plaquettes being reconstructed. The partial reconstruction leads to quenching of the magnons starting at the Î "-point due to the minority plaquettes acting as scattering points. Although comparable in relative abundance, the doped charge impurities in electron-doped cuprate superconductors do not show this quenching of magnetic excitations.

AB - The recently discovered structural reconstruction in the cuprate superlattice (SrCuO 2) n /(SrTiO 3) 2 has been investigated across the critical value of n = 5 using resonant inelastic x-ray scattering (RIXS). We find that at the critical value of n, the cuprate layer remains largely in the bulk-like two-dimensional structure with a minority of Cu plaquettes being reconstructed. The partial reconstruction leads to quenching of the magnons starting at the Î "-point due to the minority plaquettes acting as scattering points. Although comparable in relative abundance, the doped charge impurities in electron-doped cuprate superconductors do not show this quenching of magnetic excitations.

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U2 - 10.1038/srep32896

DO - 10.1038/srep32896

M3 - Article

AN - SCOPUS:84987681527

SN - 2045-2322

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JO - Scientific reports

JF - Scientific reports

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ER -

Quenched Magnon excitations by oxygen sublattice reconstruction in (SrCuO ₂) n /(SrTiO ₃) ₂ superlattices

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