The magnetic properties of Biy2Fe5O12 nanoparticles doped with Cr ions

BiY2CrxFe5−xO12 (x = 0, 0.05, 0.1, 0.2, 0.3) nanocrystals were synthesized by using a sol-gel method. Samples were characterized by the powder X-ray diffraction (XRD), the thermal gravity analysis (TGA) and the differential thermal analysis (DTA), the vibrating sample magnetometer(VSM) and Mössbauer...

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Veröffentlicht in:Journal of materials science 2007-05, Vol.42 (9), p.3167-3171
Hauptverfasser: Dong, Biao, Yang, Hua, Cui, Yuming, Yu, Lianxiang, Feng, Shouhua
Format: Artikel
Sprache:eng
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Zusammenfassung:BiY2CrxFe5−xO12 (x = 0, 0.05, 0.1, 0.2, 0.3) nanocrystals were synthesized by using a sol-gel method. Samples were characterized by the powder X-ray diffraction (XRD), the thermal gravity analysis (TGA) and the differential thermal analysis (DTA), the vibrating sample magnetometer(VSM) and Mössbauer spectrums. The average sizes of the particles were determined by the Scherrer’s formula. The special Ms and Mössbauer spectra of BiY2CrxFe5−xO12 nanocrystals are researched at room temperature. It is seen that the special Mss of samples are initially increased with increasing Cr3+ content (x < 0.1), and decreased with increasing content of Cr3+ ions (x > 0.1).
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-006-1063-y