Cation Short-Range Ordering of MgAlO and NiAlO Spinel Oxides at High Temperatures via Neutron Total Scattering.

Complex oxides that adopt the isometric spinel structure (ABO) are important for numerous technological applications and are relevant for certain geological processes, which involve exposure to extreme environments such as high pressures and temperatures. Recent studies have shown that the changes to the spinel structure caused by these environments are complex and depend on the material length scale under consideration. In this study, we have expanded this approach to the behavior of spinels under high temperatures.