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Resonant Inelastic Soft X-Ray Scattering Of Insulating Cuprates

Author

Listed:
  • L.-C. DUDA

    (Department of Physics, Uppsala University, Ångström Laboratory, Lägerhyddsv. 1, 752 37 Uppsala, Sweden)

  • T. SCHMITT

    (Department of Physics, Uppsala University, Ångström Laboratory, Lägerhyddsv. 1, 752 37 Uppsala, Sweden)

  • J. NORDGREN

    (Department of Physics, Uppsala University, Ångström Laboratory, Lägerhyddsv. 1, 752 37 Uppsala, Sweden)

  • G. DHALENNE

    (Laboratoire de Chimie des Solides, Unité Associe au CNRS 446, Université de Paris-Sud, Bâtiment 414, F-91405 Orsay, Cedex, France)

  • A. REVCOLEVSCHI

    (Laboratoire de Chimie des Solides, Unité Associe au CNRS 446, Université de Paris-Sud, Bâtiment 414, F-91405 Orsay, Cedex, France)

Abstract

We have performed high-resolution inelastic X-ray emission scattering experiments at the Cu 3p-, Cu 3s-, and O 1s-resonances of the insulating cupratesCuGeO3, CuO,La2CuO4, andSrCuO2. We introduce the novellow-energys-edge Cu-RIXS which reveals a dd-excitation peak, which was previously unobserved due to insufficient resolution and intensity in high-energy (Cu 1s RIXS). Also, O 1s-RIXS of all cuprate sample is investigated. Surprisingly, there is a large spread in the energy loss values of the RIXS features for different compounds and we explain this by assigning the larger energy features to the occurrence of a Zhang–Rice singlet while the lower energy feature (only observed forCuGeO3) is assigned to a dd-excitation.

Suggested Citation

  • L.-C. Duda & T. Schmitt & J. Nordgren & G. Dhalenne & A. Revcolevschi, 2002. "Resonant Inelastic Soft X-Ray Scattering Of Insulating Cuprates," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 9(02), pages 1103-1108.
    • Handle: RePEc:wsi:srlxxx:v:09:y:2002:i:02:n:s0218625x0200341x
    DOI: 10.1142/S0218625X0200341X
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