Finite Doping Signatures of the Mott Transition in the Two-Dimensional Hubbard Model

TitleFinite Doping Signatures of the Mott Transition in the Two-Dimensional Hubbard Model
Publication TypeJournal Article
Year of Publication2010
AuthorsSordi, G, Haule, K, Tremblay, A-MS
JournalPhysical Review Letters
Volume104
Pagination226401/1-4
Date Published2010
Abstract

Experiments on layered materials call for a study of the influence of short-range spin correlations on the Mott transition. To this end, we solve the cellular dynamical mean-field equations for the Hubbard model on a plaquette with continuous-time quantum Monte Carlo calculations. The normal-state phase diagram as a function of temperature T, interaction strength U, and filling n reveals that upon increasing n towards the insulator, there is a surface of first-order transition between two metals at nonzero doping. For T above the critical end line there is a maximum in scattering rate.

Full Text
Undefined