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arXiv · 1002.2960

Finite doping signatures of the Mott transition in the two-dimensional Hubbard model

G. Sordi·K. Haule·A. -M. S. Tremblay
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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 cluster dynamical mean-field equations for the Hubbard model on a plaquette with continuous-time quantum Monte Carlo. 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 non-zero doping. For $T$ above the critical end line there is a maximum in scattering rate.

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G. Sordi, K. Haule, A. -M. S. Tremblay. 2010-02-15. Finite doping signatures of the Mott transition in the two-dimensional Hubbard model. https://doi.org/10.1103/physrevlett.104.226402

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