Abstract
We have investigated the dispersion renormalization in over the wide doping range of , for binding energies extending to several hundred meV’s. Strong correlation effects conspire in such a way that the system exhibits a local-density-approximation-like dispersion which essentially “undresses” as the Mott insulator is approached. Our finding that the Mott insulator contains “nascent” or “preformed” metallic states with a vanishing spectral weight offers a challenge to existing theoretical scenarios for cuprates.
- Received 19 July 2008
DOI:https://doi.org/10.1103/PhysRevB.78.104513
©2008 American Physical Society