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

Phys Rev Lett. 2005 Feb 4;94(4):047203. doi: 10.1103/PhysRevLett.94.047203. Epub 2005 Feb 3.

Abstract

We report a study of electronic excitations in manganites exhibiting a range of ground states, using resonant inelastic x-ray scattering (RIXS) at the Mn K edge. Excitations with temperature dependent changes correlated with the magnetism were observed as high as 10 eV. By calculating Wannier functions, and finite-q response functions, we associate this dependence with intersite d-d excitations. The calculated dynamical structure factor is found to be similar to the RIXS spectra.