Theory of Orbital Ordering, Fluctuation and Resonant X-ray Scattering in Manganites

Details Theory of Orbital Ordering, Fluctuation and Resonant X-ray Scattering in Manganites Theory of Orbital Ordering, Fluctuation and Resonant X-ray Scattering in Manganites

1999-12-29

arxiv.org/abs/cond-mat/9912471v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 1 figure

Scientific paper

10.1103/PhysRevB.62.R9252

A theory of resonant x-ray scattering in perovskite manganites is developed by applying the group theory to the correlation functions of the pseudospin operators for the orbital degree of freedom. It is shown that static and dynamical informations of the orbital state are directly obtained from the elastic, diffuse and inelastic scatterings due to the tensor character of the scattering factor. We propose that the interaction and its anisotropy between orbitals are directly identified by the intensity contour of the diffuse scattering in the momentum space.

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