Octahedral tilts and electronic correlations in La_7/8Sr_1/8MnO_3

J. Geck; P. Wochner; S. Kiele; P. Reutler; A. Revcolevschi; B. Büchner

doi:10.1103/PhysRevB.75.014405

Octahedral tilts and electronic correlations in La_7/8Sr_1/8MnO_3

Strongly Correlated Electrons 2007-05-23 v1 Materials Science

Authors: J. Geck , P. Wochner , S. Kiele , P. Reutler , A. Revcolevschi , B. Büchner

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Abstract

We present a resonant x-ray scattering study of the octahedral tilt order between 50K and 310K in La_7/8Sr_1/8MnO_3. At the La L_II-edge the resonant (300) reflection probes cooperative tilts of the MnO_6-octahedra in this material, as verified by a model caclulation as well as a LDA+U study. The investigation of the octahedral tilts as a function of temperature and the comparison to the lattice parameters, the magnetization and the superlattice reflections related to charge and/or orbital order reveal an intimate coupling between electronic and tilt degrees of freedom in La_7/8Sr_1/8MnO_3.

Keywords

octahedral tilts electronic correlations resonant x-ray scattering La_7/8Sr_1/8MnO_3 magnetic order

Cite

@article{arxiv.cond-mat/0603226,
  title  = {Octahedral tilts and electronic correlations in La_7/8Sr_1/8MnO_3},
  author = {J. Geck and P. Wochner and S. Kiele and P. Reutler and A. Revcolevschi and B. Büchner},
  journal= {arXiv preprint arXiv:cond-mat/0603226},
  year   = {2007}
}

Octahedral tilts and electronic correlations in La_7/8Sr_1/8MnO_3

Abstract

Keywords

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