Line form of Moessbauer spectra as evidence of electron exchange in system CuO-Fe2O3

A. B. Liberman; L. L. Zakirov; R. A. Nazipov

doi:10.1117/12.287717

26 September 1997 Line form of Moessbauer spectra as evidence of electron exchange in system CuO-Fe₂O₃

A. B. Liberman, L. L. Zakirov, R. A. Nazipov

Proceedings Volume 3239, Photon Echo and Coherent Spectroscopy; (1997) https://doi.org/10.1117/12.287717
Event: PECS '97: Photon Echo and Coherent Spectroscopy, 1997, Yoshkar-Ola, Russian Federation

Abstract

Investigations of line form and hyperfine structure parameters of Fe⁵⁷ nuclei in copper ferrites were carried out by Mossbauer spectroscopy. It is shown that increasing of synthesis temperature leads to redistribution of copper and iron ions among lattice sites. This results in changing of local magnetic fields at iron nuclei and varying of relative intensities of spectrum components. However, detailed study of Mossbauer spectrum line forms for all samples did not allow to detect the influence of nearest cations environment of iron ions in octahedral sites on local field value, which is the case in other spinel structure ferrites. One of possible reasons is strong electron exchange between Cu and Fe ions in octahedral sublattice.

Citation Download Citation

A. B. Liberman, L. L. Zakirov, and R. A. Nazipov "Line form of Moessbauer spectra as evidence of electron exchange in system CuO-Fe₂O₃", Proc. SPIE 3239, Photon Echo and Coherent Spectroscopy, (26 September 1997); https://doi.org/10.1117/12.287717

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