We explore the general phenomenology of resonant inelastic scattering (RIXS) using CuB2O4, a network of CuO4 plaquettes electronically isolated by B+3 ions. Spectra show a small number of well-separated features, and we exploit the simple electronic structure to explore RIXS phenomenology by developing a calculation which allows for intermediate-state effects ignored in standard approaches. These effects are found to be non-negligible and good correspondence between our model and experiment leads to a simple picture of such phenomenology as the genesis of d-d excitations at the K edge and intermediate-state interference effects.
@article{arxiv.0805.1543,
title = {Resonant inelastic x-ray scattering in electronically quasi-zero-dimensional CuB2O4},
author = {J. N. Hancock and G. Chabot-Couture and Y. Li and G. Petrakovskii and K. Ishii and I. Jarrige and J. Mizuki and T. P. Devereaux and M. Greven},
journal= {arXiv preprint arXiv:0805.1543},
year = {2013}
}