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

G. Sordi, K. Haule, A. -M. S. Tremblay

Research output: Contribution to journalArticlepeer-review

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.
Original languageEnglish
Article number226402
Number of pages4
JournalPhysical Review Letters
Volume104
Issue number22
DOIs
Publication statusPublished - 4 Jun 2010

Keywords

  • DIMENSIONS
  • INSULATOR
  • CRITICAL-BEHAVIOR
  • MEAN-FIELD THEORY
  • PLAQUETTE
  • LATTICE

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