2011/04/30 by Eiji Kaneshita, E. Kaneshita, K. Tsutsui +3 · 1 citation
Chemistry · Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Atomic orbital #Atomic physics #Chemistry #Condensed matter physics #Electron #Ferromagnetism #Inelastic neutron scattering #Inelastic scattering #Iron-based superconductors research #Magnon #Physics #Polarization (electrochemistry) #Quantum mechanics #Rare-earth and actinide compounds #Resonant inelastic X-ray scattering #Scattering #Spectral line #Spin (aerodynamics) #Spin polarization #Superconductivity #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.84.020511
published as Phys. Rev. B 84, 020511(R) (2011)
openalex publication_date 2011/07/27 · arxiv created 2011/08/03 · arxiv updated 2011/08/04 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We theoretically examine the orbital excitations coupled to the spin degree of freedom in the parent state of the iron-arsenide superconductor, based on the calculation in a five-band itinerant model. The calculated Fe L3-edge resonant inelastic x-ray scattering (RIXS) spectra disclose the presence of spin-flip excitations involving several specific orbitals. Magnon excitations predominantly composed of a single orbital component can be seen in experiments, although its spectral weight is smaller than spin-flipped interorbital high-energy excitations. The detailed polarization and momentum dependence is also discussed with predictions for the experiments.