Multiferroic Properties and Local Structure of Spinel (Co,Mn)3O4

Multiferroic Properties and Local Structure of Spinel (Co,Mn)3O4

A room-temperature structural phase diagram for the spinel Co3−xMnxO4 (0 x 3) solidsolution system was examined to study the cubic-tetragonal phase transition. The temperaturedependentmagnetization was measured to identify the ferrimagnetic ordering at temperatures belowTC An enhanced magneto-capacitance effect was observed around TC without any appreciablehysteretic behavior due to a variation in the applied magnetic field. The directional averagedcomplex atomic form factors of both the Co and the Mn ions at two different crystallographic sitesof the oxide spinel structure near the K-absorption edges were extracted from the measured X-rayabsorption spectra. Energy dispersive atomic form factors can be used to analyze X-ray diffractiondata near the absorption edges to explore the detailed features coming from the local environmentaleffects

A room-temperature structural phase diagram for the spinel Co3−xMnxO4 (0 x 3) solidsolution system was examined to study the cubic-tetragonal phase transition. The temperaturedependentmagnetization was measured to identify the ferrimagnetic ordering at temperatures belowTC An enhanced magneto-capacitance effect was observed around TC without any appreciablehysteretic behavior due to a variation in the applied magnetic field. The directional averagedcomplex atomic form factors of both the Co and the Mn ions at two different crystallographic sitesof the oxide spinel structure near the K-absorption edges were extracted from the measured X-rayabsorption spectra. Energy dispersive atomic form factors can be used to analyze X-ray diffractiondata near the absorption edges to explore the detailed features coming from the local environmentaleffects