We use resonant inelastic x-ray scattering to probe the propagation of plasmons in the
electron-doped cuprate superconductor Sr 0.9 La 0.1 CuO 2. We detect a plasmon gap of∼ …

Electron correlations play a dominant role in the charge dynamics of the cuprates. We use
resonant inelastic X-ray scattering (RIXS) to track the do** dependence of the collective …

We perform a comprehensive study of charge excitations in a bilayer electron system in the
presence of the long-range Coulomb interaction (LRC). Our major point is to derive formulas …

Charge order has now been<? qry role=" ITA" msg=" References contained in the
Supplemental Material should also appear in the reference section of the main paper (cited …

Estimating many-body effects that deviate from an independent particle approach has long
been a key research interest in condensed matter physics. Layered cuprates are prototypical …

The parent compound of high-T c cuprate superconductors is a Mott insulator described by
the Heisenberg spin–spin interaction on a square lattice. With carrier do**, the charge …

The study of the charge excitations in cuprates is presently an interesting topic because of
the development of new and precise x-ray experiments. Based on a large-N formulation of …

The recent development of x-ray scattering techniques revealed the charge-excitation
spectrum in high-T c cuprate superconductors. While the presence of a dispersive signal in …

Magnetic and bond-charge interactions can arise from the same microscopic interaction.
Motivated by this observation, we compute magnetic and bond-charge excitation spectra on …

Recently resonant inelastic x-ray scattering experiments reported fine details of the charge
excitations around the in-plane momentum q∥=(0, 0) for various do** rates in electron …