Electronic superlattice revealed by resonant scattering from random impurities in Sr3Ru2O7

Abstract

Resonant elastic x-ray scattering (REXS) is an exquisite element-sensitive tool for the study of subtle charge, orbital, and spin superlattice orders driven by the valence electrons, which therefore escape detection in conventional x-ray diffraction (XRD). Although the power of REXS has been demonstrated by numerous studies of complex oxides performed in the soft x-ray regime, the cross section and photon wavelength of the material-specific elemental absorption edges ultimately set the limit to the smallest superlattice amplitude and periodicity one can probe. Here we show -- with simulations and REXS on Mn-substituted Sr${}_3$Ru${}_2$O${}_7$ -- that these limitations can be overcome by performing resonant scattering experiments at the absorption edge of a suitably-chosen, dilute impurity. This establishes that -- in analogy with impurity-based methods used in electron-spin-resonance, nuclear-magnetic resonance, and Mössbauer spectroscopy -- randomly distributed impurities can serve as a non-invasive, but now momentum-dependent probe, greatly extending the applicability of resonant x-ray scattering techniques.

References in corpus (13)

• Long-range incommensurate charge fluctuations in (Y,Nd)Ba2Cu3O(6+x)
• Direct observation of competition between superconductivity and charge density wave order in YBa2Cu3Oy
• Formation of a Nematic Fluid at High Fields in Sr3Ru2O7
• Distinct Charge Orders in the Planes and Chains of Ortho-III-Ordered YBa${}_2$Cu${}_3$O${}_{6+\delta }$ Superconductors Identified by Resonant Elastic X-ray Scattering
• The ground state of Sr3Ru2O7 revisited; Fermi liquid close to a ferromagnetic instability
• Momentum-dependent charge correlations in YBa${}_2$Cu${}_3$O${}_{6+\delta }$ superconductors probed by resonant x-ray scattering: Evidence for three competing phases
• A Structural Probe of the Doped Holes in Cuprate Superconductors
• Impurity-induced transition to a Mott insulator in Sr${}_3$Ru${}_2$O${}_7$
• Crystal-field level inversion in lightly Mn-doped Sr3Ru2O7
• Evolution of Structural and Physical Properties of Sr3(Ru1-xMnx)2O7 with Mn Concentration
• Reentrant spin-glass transition in a dilute magnet
• Mott versus Slater-type metal-insulator transition in Mn-substituted Sr3Ru2O7
• Magnetic Field Induced Low-Energy Spin Excitations in YBa2Cu4O8 Measured by High Field Gd3+ ESR

Cited by in corpus (7)

• Spin-Orbital Order Modified by Orbital Dilution in Transition Metal Oxides: From Spin Defects to Frustrated Spins Polarizing Host Orbitals
• Strain-induced orbital energy shift in antiferromagnetic RuO2 revealed by resonant elastic x-ray scattering
• Pressure-dependent Electronic Superlattice in the Kagome-Superconductor CsV${}_3$Sb${}_5$
• Emergent charge order near the doping-induced Mott-insulating quantum phase transition in Sr${}_3$Ru${}_2$O${}_7$
• Competing magnetic orders in quantum critical Sr${}_3$Ru${}_2$O${}_7$
• Structural and magnetic field effects on spin fluctuations in Sr${}_3$Ru${}_2$O${}_7$
• Mn-induced magnetic symmetry breaking and its correlation with the metal-insulator transition in bilayered Sr3(Ru1-xMnx)2O7