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Temperature dependent d-d excitations in manganites probed by resonant inelastic x-ray scattering

S. Grenier·J. P. Hill·V. Kiryukhin·W. Ku·Y. -J. Kim·K. J. Thomas·S-W. Cheong·Y. Tokura·Y. Tomioka·D. Casa·T. Gog
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Abstract

We report the observation of temperature dependent electronic excitations in various manganites utilizing resonant inelastic x-ray scattering (RIXS) at the Mn K-edge. Excitations were observed between 1.5 and 16 eV with temperature dependence found as high as 10 eV. The change in spectral weight between 1.5 and 5 eV was found to be related to the magnetic order and independent of the conductivity. On the basis of LDA+U and Wannier function calculations, this dependence is associated with intersite d-d excitations. Finally, the connection between the RIXS cross-section and the loss function is addressed.

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S. Grenier, J. P. Hill, V. Kiryukhin, W. Ku, Y. -J. Kim, K. J. Thomas, S-W. Cheong, Y. Tokura, Y. Tomioka, D. Casa, T. Gog. 2004-07-13. Temperature dependent d-d excitations in manganites probed by resonant inelastic x-ray scattering. https://doi.org/10.1103/physrevlett.94.047203

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