Polarization-analyzed resonant inelastic x-ray scattering of the orbital excitations in KCuF3

Details Polarization-analyzed resonant inelastic x-ray scattering of the orbital excitations in KCuF3 Polarization-analyzed resonant inelastic x-ray scattering of the orbital excitations in KCuF3

2010-08-04

arxiv.org/abs/1008.0682v2

Phys. Rev. B 83, 241101(R) (2011)

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 3 figures

Scientific paper

10.1103/PhysRevB.83.241101

We report a Cu K-edge resonant inelastic x-ray scattering (RIXS) study of orbital excitations in KCuF3 . By performing the polarization analysis of the scattered photons, we disclose that the excitation between the eg orbitals and the excitations from t2g to eg exhibit distinct polarization dependence. The polarization dependence of the respective excitations is interpreted based on a phenomenological consideration of the symmetry of the RIXS process that yields a necessary condition for observing the excitations. In addition, we show that the orbital excitations are dispersionless within our experimental resolution.

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