2016/08/17 by M. Dantz, J. Pelliciari, D. Samal +6 · 12 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Cuprate #Electronic and Structural Properties of Oxides #Impurity #Magnon #Physics of Superconductivity and Magnetism #Quenching (fluorescence) #Scattering #Superconductivity #Superlattice #cond-mat.str-el
paper · pdf · doi:10.1038/srep32896
published in Scientific Reports 6(1), 32896 (Nature Portfolio) · Accepted for publication in Scientific Reports
arxiv created 2016/08/17 · openalex publication_date 2016/09/12 · arxiv updated 2016/09/13 · openalex created_date 2016/09/16 · openalex updated_date 2026/08/05
The recently discovered structural reconstruction in the cuprate superlattice (SrCuO2)n/(SrTiO3)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 Γ-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.