Figure 1: Phase diagrams for canonical Mott systems RENiO3 and V2O3.
From: Volume-wise destruction of the antiferromagnetic Mott insulating state through quantum tuning
(a) RENiO3 phase diagram, with temperature along the vertical axis and rare-earth ionic radius along the horizontal axis. The red curve indicates a metal–insulator transition on cooling, blue a paramagnet–antiferromagnetic transition, and yellow a structural transition. The coloured circles represent phase boundaries for the stoichiometric compounds determined by previous studies. Coloured arrows indicate compositions studied in the current work. The quantum phase transition (QPT) occurs at a radius of ∼1.175 Å. PS, phase separated. After ref. 4. (b) V2O3 phase diagram, with temperature along the vertical axis and hydrostatic pressure along the horizontal axis. The QPT occurs at a pressure of ∼2.0 GPa. Doping with Ti and Cr is shown on the upper horizontal axis for comparison. All coloured curves and symbols are the same as in a. After ref. 16.
