New information on Mössbauer and phase transition properties of Z‐type hexaferrites

In this paper various cation substituted Z‐hexaferrites, prepared by the usual ceramic procedure and firing at a relatively low temperature (980○C) in a 2 atm. oxygen pressure are discussed. On these materials extensive studies were undertaken, X‐ray diffraction, IR absorption, scanning electronmicroscopy and a Mössbauer spectroscopy. Data obtained are explained, and discussed in details, leading to new information about the interaction of variant doped cation with the Z‐hexaferrite Fe sites.