Structure-related magnetic properties of MnZn ferrite with ultra-fine grain structure - Archive ouverte HAL
Article Dans Une Revue European Physical Journal: Applied Physics Année : 2003

Structure-related magnetic properties of MnZn ferrite with ultra-fine grain structure

Résumé

Nanostructured ferrites have been prepared by milling starting from commercial ferrite powders. Subsequent compaction and sintering were applied to obtain cylindrical pieces. The magnetization as a function of the grain size follows the non magnetic grain boundary (NMGB) model. The boundary thickness is estimated as about 1.5 nm, which is consistent with that calculated from the Mössbauer absorption areas. Due to the high lattice distortion, the small exchange length impedes the averaging of the anisotropy.

Domaines

Matériaux

Dates et versions

hal-03934759 , version 1 (11-01-2023)

Identifiants

Citer

J. Moulin, F. Mazaleyrat, Y. Champion, P. Langlois, M. Lécrivain, et al.. Structure-related magnetic properties of MnZn ferrite with ultra-fine grain structure. European Physical Journal: Applied Physics, 2003, 23 (1), pp.49-54. ⟨10.1051/epjap:2003040⟩. ⟨hal-03934759⟩
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