Structural and magnetic properties of strontium–borate glasses containing iron ions |
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| Authors: | I. Ardelean R. Lungu P. Păşcuţă |
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| Affiliation: | (1) Faculty of Physics, Babes-Bolyai University, 400084 Cluj-Napoca, Romania;(2) Department of Thermothecnics, Techical University, 400641 Cluj-Napoca, Romania |
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| Abstract: | Glasses of the xFe2O3·(100 − x)[B2O3·SrO] system, with 0 ≤ x ≤ 30 mol%, were studied by EPR and magnetic susceptibility measurements. EPR spectroscopy and magnetic susceptibility measurements show that the Fe3+ ions are localized in sites of distorted octahedral symmetry and in clustered formations containing both Fe3+ and Fe2+ ions. Dipolar and superexchange interactions involving iron ions were revealed depending on the iron content of the sample. |
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