Fig. 7: Metastable monoclinic metal.
From: Nanoscale self-organization and metastable non-thermal metallicity in Mott insulators
Map of the space-dependent calculated shear-strain amplitude (grey colour-scale) and metastable monoclinic metallic regions (purple solid areas). The different filling fractions (ff) of the metastable phase correspond to different values of ϵIMT(f). Darker grey indicates smaller strain amplitude. The purple areas highlight the spatial regions in which the electronic metallic solution with monoclinic strain is the stable one (absolute minimum in the free-energy), i.e. when the condition ϵ2(r) ≤ ϵIMT(f) is fulfilled. We stress that in all panels the same equilibrium space-dependent monoclinic shear strain, ϵ2(r), of the top-left panel (colours correspond to the three equivalent shear-strain vectors, as in Fig. 5) is considered. The filling fraction of the photo-induced non-thermal metallic phase is indicated for each panel.
