Multi‐Method Characterization of the High‐Entropy Spinel Oxide Mn<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>Cu<sub>0.2</sub>Zn<sub>0.2</sub>Fe<sub>2</sub>O<sub>4</sub>: Entropy Evidence, Microstructure, and Magnetic Properties
Chemistry methods