Coherent organization of electronic correlations as a mechanism to enhance and stabilize high-T _C cuprate superconductivity.

ABSTRACT: Strong diffusive or incoherent electronic correlations are the signature of the strange-metal normal state of the cuprate superconductors, with these correlations considered to be undressed or removed in the superconducting state. A critical question is if these correlations are responsible for the high-temperature superconductivity. Here, utilizing a development in the analysis of angle-resolved photoemission data, we show that the strange-metal correlations don't simply disappear in the superconducting state, but are instead converted into a strongly renormalized coherent state, with stronger normal state correlations leading to stronger superconducting state renormalization. This conversion begins well above T _C at the onset of superconducting fluctuations and it greatly incr

SUBMITTER: Li H 

PROVIDER: S-EPMC5750216 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature