Speaker: Giacomo Ghiringhelli, POLIMI
Program Description:
Resonant inelastic x-ray scattering in the soft x-ray range is an ideal tool to explore the mysteries of high Tc superconductors (cuprates), still one of the hottest topics of solid state physics more than 30 years after their discovery. I will present some results on cuprates recently obtained with high resolution RIXS at the European synchrotron ESRF: 1) the precise determination of the magnon dispersion, allowing a better insight on the long range exchange interaction; 2) the observation of fluctuating charge density modulations that are reshaping the cuprate phase diagram; 3) the evidence of the superconducting gap opening in RIXS spectra, offering new opportunities for the study of superconductivity in bulk samples.
