TY - JOUR KW - Perovskite KW - Heavy metals KW - Iridium compounds KW - Strontium compounds KW - X-ray scattering KW - Transition metals KW - Spin-orbit couplings KW - Iridates KW - X-rays KW - Heavy metal elements KW - Magnon excitations KW - Oxygen K-edge KW - Resonant inelastic x-ray scattering KW - RIXS KW - Transition metal elements AU - Xu Liu AU - M.P.M Dean AU - J F Liu AU - S.G Chiuzbəian AU - N Jaouen AU - A Nicolaou AU - W.G Yin AU - C.R Serrao AU - Ramamoorthy Ramesh AU - H Ding AU - J.P Hill AB - Resonant inelastic x-ray scattering (RIXS) at the L-edge of transition metal elements is now commonly used to probe single magnon excitations. Here we show that single magnon excitations can also be measured with RIXS at the K-edge of the surrounding ligand atoms when the center heavy metal elements have strong spin-orbit coupling. This is demonstrated with oxygen K-edge RIXS experiments on the perovskite Sr2IrO4, where low energy peaks from single magnon excitations were observed. This new application of RIXS has excellent potential to be applied to a wide range of magnetic systems based on heavy elements, for which the L-edge RIXS energy resolution in the hard x-ray region is usually poor. © 2015 IOP Publishing Ltd. BT - Journal of Physics Condensed Matter DO - 10.1088/0953-8984/27/20/202202 LA - eng M1 - 20 N1 - cited By 9 N2 - Resonant inelastic x-ray scattering (RIXS) at the L-edge of transition metal elements is now commonly used to probe single magnon excitations. Here we show that single magnon excitations can also be measured with RIXS at the K-edge of the surrounding ligand atoms when the center heavy metal elements have strong spin-orbit coupling. This is demonstrated with oxygen K-edge RIXS experiments on the perovskite Sr2IrO4, where low energy peaks from single magnon excitations were observed. This new application of RIXS has excellent potential to be applied to a wide range of magnetic systems based on heavy elements, for which the L-edge RIXS energy resolution in the hard x-ray region is usually poor. © 2015 IOP Publishing Ltd. PB - Institute of Physics Publishing PY - 2015 T2 - Journal of Physics Condensed Matter TI - Probing single magnon excitations in Sr2IrO4 using O K-edge resonant inelastic x-ray scattering VL - 27 SN - 09538984 ER -