Evidence for weakly correlated oxygen holes in the highest-T${}_c$ cuprate superconductor HgBa${}_2$Ca${}_2$Cu${}_3$O${}_{8+\delta }$

A. Chainani, M. Sicot, Y. Fagot-Revurat +8

We study the electronic structure of HgBa${}_2$Ca${}_2$Cu${}_3$O${}_{8+\delta }$ (Hg1223 ; T${}_c$ = 134 K) using photoemission spectroscopy (PES) and x-ray absorption spectroscopy (XAS). Resona…