Anomalous resonant inelastic x-ray scattering dispersions of Sr2 CuO3 measured at the Cu 1s→3d edge

J. W. Seo, K. Yang, D. W. Lee, Y. S. Roh, J. H. Kim, H. Eisaki, H. Ishii, I. Jarrige, Y. Q. Cai, D. L. Feng, C. Kim

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Abstract

We report on resonant inelastic x-ray scattering studies of a one-dimensional quantum spin system Sr2 CuO3. Data were taken at the Cu 1s→3d edge, which is expected to provide dd excitation spectra. The energy loss spectra show the lowest peak near 2.0 eV, smaller by ≈0.6 eV than the lowest energy peak obtained at the 1s→4p edge. The feature has a total dispersion of about 0.2 eV with a periodicity of π. While a comparison with optical measurements supports the interpretation of the data as being from dd excitations, the dispersion is apparently incompatible with theoretical results.

Original languageEnglish
Article number161104
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume73
Issue number16
DOIs
Publication statusPublished - 2006 May 10

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Seo, J. W., Yang, K., Lee, D. W., Roh, Y. S., Kim, J. H., Eisaki, H., Ishii, H., Jarrige, I., Cai, Y. Q., Feng, D. L., & Kim, C. (2006). Anomalous resonant inelastic x-ray scattering dispersions of Sr2 CuO3 measured at the Cu 1s→3d edge. Physical Review B - Condensed Matter and Materials Physics, 73(16), [161104]. https://doi.org/10.1103/PhysRevB.73.161104