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Charge dynamics in strongly correlated one-dimensional Cu-O chain systems revealed by inelastic X-ray scattering

S. Suga·S. Imada·A. Higashiya·A. Shigemoto·S. Kasai·M. Sing·H. Fujiwara·A. Sekiyama·A. Yamasaki·C. Kim·T. Nomura·J. Igarashi·M. Yabashi·T. Ishikawa
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Abstract

We report on the Cu 1s resonant inelastic X-ray scattering (RIXS) of Cu-O one-dimensional (1D) strongly correlated insulator systems with contrasting atomic arrangements, namely edge-sharing CuGeO3 and corner-sharing Sr2CuO3. Owing to good statistics of the high-resolution RIXS data, so far unresolved fine structures are revealed. Detailed photon-energy and momentum dependence of the RIXS spectra in comparison with theoretical calculations has clarified the natures of the low-energy charge excitations and hybridization of the electronic states.

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S. Suga, S. Imada, A. Higashiya, A. Shigemoto, S. Kasai, M. Sing, H. Fujiwara, A. Sekiyama, A. Yamasaki, C. Kim, T. Nomura, J. Igarashi, M. Yabashi, T. Ishikawa. 2005-02-24. Charge dynamics in strongly correlated one-dimensional Cu-O chain systems revealed by inelastic X-ray scattering. https://doi.org/10.1103/physrevb.72.081101

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