Hyperfine interactions in an oxonium ferric orthophosphate

Abstract Mössbauer and structure data of Fe3H15(PO4)8·5H2O are discussed in detail. The small quadrupole interaction in this orthophosphate can be compared with a series of related compounds by use of a point charge model. The quadrupole splitting undergoes a relaxation collapse above 300 K. Below 27 K a ferrimagnetic ordering is found. It shows complicated […]