Effect of magnetism on lattice dynamics in SrFe${}_2$As${}_2$ as seen via high resolution inelastic x-ray scattering

N. Murai, T. Fukuda, T. Kobayashi +9

Phonon spectra of detwinned {SrFe${}_2$As${}_2$} crystals, as measured by inelastic x-ray scattering, show clear anisotropy accompanying the magneto-structural transition at 200 K. We…