Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1803443 | Journal of Magnetism and Magnetic Materials | 2008 | 5 Pages |
Abstract
We obtained the temperature dependence for low-field boundary of the anisotropy field distribution in a system of barium hexaferrite nanocrystals in the temperature range from 300 to 700Â K. We treated the experimental data taking into account the influence of thermal fluctuations on the anisotropy field and the transition of particles into the paramagnetic state, stimulated by external magnetic field. We showed that the dependence under consideration is formed by particles of different volume, which increased from 3.5Ã10â18 to 40Ã10â18Â cm3 while the particles lost their magnetic stability with the temperature growth.
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Authors
L.P. Ol'khovik, A.S. Kamzin, E.L. Karyakina, Z.I. Sizova, E.V. Shurinova,