Unraveling the nature of charge excitations in La2CuO4 with momentum-resolved Cu K-edge resonant inelastic X-ray scattering

Title: Unraveling the nature of charge excitations in La2CuO4 with momentum-resolved Cu K-edge resonant inelastic X-ray scattering

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Abstract

Results of model calculations using exact diagonalization reveal the orbital character of states associated with different Raman loss peaks in Cu K-edge resonant inelastic X-ray scattering (RIXS) from La{sub 2}CuO{sub 4}. The model includes electronic orbitals necessary to highlight non-local Zhang-Rice singlet, charge transfer and d-d excitations, as well as states with apical oxygen 2p{sub z} character. The dispersion of these excitations is discussed with prospects for resonant final state wave-function mapping. A good agreement with experiments emphasizes the substantial multi-orbital character of RIXS profiles in the energy transfer range 1-6 eV.

Authors:: Chen, Cheng-Chien

Publication Date:: 2011-03-01

Research Org.:: SLAC National Accelerator Lab., Menlo Park, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1007547

Report Number(s):: SLAC-PUB-14291
TRN: US201106%%611

DOE Contract Number:: AC02-76SF00515

Resource Type:: Journal Article

Journal Name:: Submitted to Physical Review Letters

Additional Journal Information:: Journal Name: Submitted to Physical Review Letters

Country of Publication:: United States

Language:: English

Subject:: 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ENERGY TRANSFER; OXYGEN; SCATTERING; MATSCI

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                    Chen, Cheng-Chien. Unraveling the nature of charge excitations in La2CuO4 with momentum-resolved Cu K-edge resonant inelastic X-ray scattering.  United States: N. p., 2011. 
        Web.

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                    Chen, Cheng-Chien. Unraveling the nature of charge excitations in La2CuO4 with momentum-resolved Cu K-edge resonant inelastic X-ray scattering.  United States.

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                    Chen, Cheng-Chien. Tue .  
        "Unraveling the nature of charge excitations in La2CuO4 with momentum-resolved Cu K-edge resonant inelastic X-ray scattering".  United States.  https://www.osti.gov/servlets/purl/1007547.

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@article{osti_1007547,

  title        = {Unraveling the nature of charge excitations in La2CuO4 with momentum-resolved Cu K-edge resonant inelastic X-ray scattering},

  author       = {Chen, Cheng-Chien},

  abstractNote = {Results of model calculations using exact diagonalization reveal the orbital character of states associated with different Raman loss peaks in Cu K-edge resonant inelastic X-ray scattering (RIXS) from La{sub 2}CuO{sub 4}. The model includes electronic orbitals necessary to highlight non-local Zhang-Rice singlet, charge transfer and d-d excitations, as well as states with apical oxygen 2p{sub z} character. The dispersion of these excitations is discussed with prospects for resonant final state wave-function mapping. A good agreement with experiments emphasizes the substantial multi-orbital character of RIXS profiles in the energy transfer range 1-6 eV.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/1007547},
  journal      = {Submitted to Physical Review Letters},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2011},

  month        = {3}

}

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