Speaker
Description
RENiO3 perovskites are a handbook example of strongly correlated system, where interplay between, lattice, charge, and spin degrees of freedom leads to spontaneous metal-insulator transition. The electronic localization is associated with a charge redistribution and subtle structural distortions. Recently, intriguing phenomena like non-centrosymmetric antiferromagnetic ordering or multiferroelectricity have been theoretically predicted in the system. However, drawback for the advancement in the nickelates physics has been lack of single crystals, which limited amount of experiments, needed for validation of predictions. We achieved RENiO3 crystals by applying the solvothermal method in temperature gradient under high-oxygen-pressure, which have opened new opportunities to go beyond known up to date physics of the family.
