Spectroscopic Analysis to understand x-ray scattering of quantum materials

Program Description
Nowadays, resonant elastic x-ray scattering has been appreciated with a unique technique for probing a hidden order such as spatial modulations of charge, spin, and orbitals. The elastic resonant process gives rise to an enhancement of the scattering signal. In this manner, most of the resonant elastic x-ray scattering works are based on this aspect. However, it is certainly insufficient to reveal a fundamental understanding on the probed orders, because of a lack of spectroscopic information. In general, such information has been easily overlooked. Apparently, knowledge of spectroscopy and its proper application in the scattering analysis will give hints to unveil hidden information.

In this talk, I would like to introduce how spectroscopic aspects help to understand the electronic orders in the scattering experiments using a few examples, such as rare-earth tetraboride, CMR manganites, and high-Tc superconductor cuprates. Moreover, in the final example, I will briefly touch why the resonant inelastic x-ray scattering is profound to complete this subject.