Details

Autor(en) / Beteiligte

• Zhou, X. Z.
• Morrish, A. H.
• Yang, Zheng
• Zeng, Hua-Xian

Titel

Co-Sn substituted barium ferrite particles

Ist Teil von

• Journal of applied physics, 1994-05, Vol.75 (10), p.5556-5558

Erscheinungsjahr

1994

Quelle

AIP Journals Complete

Beschreibungen/Notizen

• Co-Sn substituted barium ferrite particles, BaFe12−2xCoxSnxO19 (0≤x≤1.4), have been investigated using x-ray, VSM, and Mössbauer spectroscopy. The magnetocrystalline-anisotropy constant has been determined as a function of x from an analysis of the approach to magnetic saturation. Mössbauer spectra indicate that Co2+ and Sn4+ ions have a strong preference for the 2b, 4fVI, and 12k sites. The reduced anisotropy constants k=K1(x)/K1(0) have been calculated based on the single-ion model and the site preferences and agree well with the measured values. The origin of the magnetic changes caused by Co2+ and Sn4+ substitution can be attributed to the site preferences.