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Magnetic Excitation Spectra ofSr2IrO4Probed by Resonant Inelastic X-Ray Scattering: Establishing Links to Cuprate Superconductors
Open accessAbstract
We used resonant inelastic x-ray scattering to reveal the nature of magnetic interactions in Sr2IrO4, a 5d transition-metal oxide with a spin-orbit entangled ground state and J(eff)=1/2 magnetic moments. The magnon dispersion in Sr2IrO4 is well-described by an antiferromagnetic Heisenberg model with an effective spin one-half on a square lattice, which renders the low-energy effective physics of Sr2IrO4 much akin to that in superconducting cuprates. This point is further supported by the observation of exciton modes in Sr2IrO4, whose dispersion is strongly renormalized by magnons, which can be understood by analogy to hole propagation in the background of antiferromagnetically ordered spins in the cuprates.
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Wan, X., Turner, A. M., Vishwanath, A., & Savrasov, S. Y. (2011) · Physical Review B · doi:10.1103/physrevb.83.205101 · Cited by 4,718
Cited by
Fermi arcs in a doped pseudospin-1/2 Heisenberg antiferromagnet
Kim, Y. K., Krupin, O., Denlinger, J. D., Bostwick, A., Rotenberg, E., Zhao, Q., Mitchell, J. F., Allen, J. W., & Kim, B. J. (2014) · Science · doi:10.1126/science.1251151 · Cited by 298
Self-citationUeda, K., Fujioka, J., & Tokura, Y. (2016) · Physical Review B · doi:10.1103/physrevb.93.245120 · Cited by 62
Magnon spectra of cuprates beyond spin wave theory
Bao, J., Gohlke, M., Rau, J. G., & Shannon, N. (2025) · Physical Review Research · doi:10.1103/physrevresearch.7.l012053 · Cited by 5
Metadata
- Authors
- Kim, J., Casa, D., Upton, M. H., Gog, T., Kim, Y.-J., Mitchell, J. F., van Veenendaal, M., Daghofer, M., van den Brink, J., Khaliullin, G., & Kim, B. J.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2012-04-23
- Volume
- 108
- Issue
- 17
- Pages
- 177003-177003
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1503296833
- Cited by
- 474
- References
- 1
- FWCI
- 29.33
- Type
- journal article
- Language
- en
- Open access
- green
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- Kim, J., Casa, D., Upton, M. H., Gog, T., Kim, Y.-J., Mitchell, J. F., van Veenendaal, M., Daghofer, M., van den Brink, J., Khaliullin, G., & Kim, B. J. (2012). Magnetic Excitation Spectra ofSr2IrO4Probed by Resonant Inelastic X-Ray Scattering: Establishing Links to Cuprate Superconductors. Physical Review Letters. https://doi.org/10.1103/physrevlett.108.177003
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