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Title: Probing single magnon excitations in Sr₂IrO₄ using O K-edge resonant inelastic x-ray scattering

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 resolutions in the hard X-ray region is usually poor.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [5] ;  [2] ;  [6] ;  [3] ;  [7] ;  [2]
  1. Chinese Academy of Sciences (CAS), Beijing (China). Beijing National Lab. for Condensed Matter Physics (BNLCP-CAS); Brookhaven National Lab. (BNL), Upton, NY (United States); Collaborative Innovation Center of Quantum Matter, Beijing (China)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  4. Sorbonne Univ., Paris (France); Synchrotron SOLEIL, Saint-Aubin (France)
  5. Synchrotron SOLEIL, Saint-Aubin (France)
  6. Univ. of California, Berkeley, CA (United States)
  7. Chinese Academy of Sciences (CAS), Beijing (China). Beijing National Lab. for Condensed Matter Physics (BNLCP-CAS); Collaborative Innovation Center of Quantum Matter, Beijing (China)
Publication Date:
Report Number(s):
BNL-107500-2015-JA
Journal ID: ISSN 0953-8984; R&D Project: PO011; KC0201060
Grant/Contract Number:
SC00112704
Type:
Accepted Manuscript
Journal Name:
Journal of Physics. Condensed Matter
Additional Journal Information:
Journal Volume: 27; Journal Issue: 20; Journal ID: ISSN 0953-8984
Publisher:
IOP Publishing
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
OSTI Identifier:
1182514

Liu, X., Dean, M. P. M., Liu, J., Chiuzbaian, S. G., Jaouen, N., Nicolaou, A., Yin, W. G., Rayan Serrao, C., Ramesh, R., Ding, H., and Hill, J. P.. Probing single magnon excitations in Sr₂IrO₄ using O K-edge resonant inelastic x-ray scattering. United States: N. p., Web. doi:10.1088/0953-8984/27/20/202202.
Liu, X., Dean, M. P. M., Liu, J., Chiuzbaian, S. G., Jaouen, N., Nicolaou, A., Yin, W. G., Rayan Serrao, C., Ramesh, R., Ding, H., & Hill, J. P.. Probing single magnon excitations in Sr₂IrO₄ using O K-edge resonant inelastic x-ray scattering. United States. doi:10.1088/0953-8984/27/20/202202.
Liu, X., Dean, M. P. M., Liu, J., Chiuzbaian, S. G., Jaouen, N., Nicolaou, A., Yin, W. G., Rayan Serrao, C., Ramesh, R., Ding, H., and Hill, J. P.. 2015. "Probing single magnon excitations in Sr₂IrO₄ using O K-edge resonant inelastic x-ray scattering". United States. doi:10.1088/0953-8984/27/20/202202. https://www.osti.gov/servlets/purl/1182514.
@article{osti_1182514,
title = {Probing single magnon excitations in Sr₂IrO₄ using O K-edge resonant inelastic x-ray scattering},
author = {Liu, X. and Dean, M. P. M. and Liu, J. and Chiuzbaian, S. G. and Jaouen, N. and Nicolaou, A. and Yin, W. G. and Rayan Serrao, C. and Ramesh, R. and Ding, H. and Hill, J. P.},
abstractNote = {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 resolutions in the hard X-ray region is usually poor.},
doi = {10.1088/0953-8984/27/20/202202},
journal = {Journal of Physics. Condensed Matter},
number = 20,
volume = 27,
place = {United States},
year = {2015},
month = {4}
}