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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

10.1088/0953-8984/27/20/202202

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

Year of Publication

2015

ISSN

09538984

Notes

cited By 9

Research Areas

Ramesh Lab