| Multicomponent vanadate Cu3Fe4V6O24 has been synthesised using the solid state reaction method and studied by electron paramagnetic resonance (EPR). Temperature dependence of the EPR spectra has been performed in the 90 - 290K temperature range. Both the resonance field and the integrated intensity of the EPR line have shown a minimum values at ∼230K. This behaviour could be correlated with the reorientation effect of magnetic interactions at higher temperatures, leading to a change of an effective internal magnetic field. Comparison is made between the values of the obtained EPR parameters for the Zn3Fe4V6O24 and Cu3Fe4V6O24 compounds. The observed effect could be attributed to an inherent magnetic inhomogeneity of the system due to the presence of different magnetic sublattices. |
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