“…Although MnCo 2 O 4 and CoMn 2 O 4 powders and thin films have been the subject of various structural, electrochemical and magnetic studies, little has been done, to our knowledge, to fully characterize Mn 3Àx Co x O 4 ceramics over the whole solid solution range [5][6][7][8]. In most cases, details of the preparation method (synthesis, thermal treatment, processing) are minimal.…”