Detection of Acoustic Plasmons in Hole-Doped Lanthanum and Bismuth Cuprate Superconductors Using Resonant Inelastic X-Ray Scattering

Single-band model of resonant inelastic x-ray scattering by quasiparticles in high-T(c) cuprate superconductors.

We show that a simple model of noninteracting quasiparticles accurately describes resonant inelastic x-ray scattering (RIXS) experiments in the hole-doped cuprate superconductors. Band structure alone yields signatures previously attributed to collective magnetic modes, such as the dispersing peaks and nontrivial polarization dependence found in several experiments. We conclude that RIXS data c...

Magnetic Resonant Inelastic X-ray Scattering

Mott gap excitations and resonant inelastic x-ray scattering in doped cuprates.

Predictions are made for the momentum- and carrier-dependent degradation of the Mott gap upon doping in high-T(c) cuprates as would be observed in Cu K-edge resonant inelastic x-ray scattering (RIXS). The two-dimensional Hubbard model with second- and third-nearest-neighbor hopping terms has been studied by numerical exact diagonalization. Special emphasis is placed on the particle-hole asymmet...

Raman and fluorescence characteristics of resonant inelastic X-ray scattering from doped superconducting cuprates

Measurements of spin excitations are essential for an understanding of spin-mediated pairing for superconductivity; and resonant inelastic X-ray scattering (RIXS) provides a considerable opportunity to probe high-energy spin excitations. However, whether RIXS correctly measures the collective spin excitations of doped superconducting cuprates remains under debate. Here we demonstrate distinct R...

Intrinsic electron and hole bands in electron-doped cuprate superconductors

T. Xiang,1,2 H. G. Luo,2,3 D. H. Lu,4 K. M. Shen,5 and Z. X. Shen4 1Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100190, China 2Institute of Theoretical Physics, Chinese Academy of Sciences, P.O. Box 2735, Beijing 100190, China 3Center for Interdisciplinary Studies, Lanzhou University, Lanzhou 730000, China 4Department of Physics, Applied Physics, and Stanford Synchr...