Probing single magnon excitations in Sr2IrO4 using O K-edge resonant inelastic x-ray scattering
Publication Type
Journal Article
Authors
Liu, X., M.P.M. Dean, J. F. Liu, S.G. Chiuzbəian, N. Jaouen, A. Nicolaou, W.G. Yin, C.R. Serrao, Ramamoorthy Ramesh, H. Ding, J.P. Hill
DOI
Abstract
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.
Journal
Journal of Physics Condensed Matter
Volume
27
Year of Publication
2015
ISSN
09538984