Effective Anisotropy in Polycrystalline Materials. Separation of Components
- 1 February 1968
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 39 (2) , 727-729
- https://doi.org/10.1063/1.2163603
Abstract
A method is proposed to determine the over‐all anisotropy in ferrimagnetic materials from initial susceptibility of single‐domain grain samples. Indications on technology of single‐domain grain samples are given. The system is studied in detail. The upper limit of the contribution from dipolar energy has been determined by studying and is found to be negligible. The study of magnetoelastic anisotropy has been carried out on compositions of known . This anisotropy (expressed as ) varies very little at low temperatures depending on Zn content, and for a given composition it varies as . Thus, is temperature independent. is shown to be an intrinsic property for a composition and it increases with Zn content. Our investigations show that realization of single‐domain grain samples enables us to obtain and from measurements of , , and , which are easily accessible from polycrystalline samples.
This publication has 5 references indexed in Scilit:
- Magnetic Anisotropy of Some Nickel Zinc Ferrite CrystalsJournal of Applied Physics, 1967
- Separation of susceptibility mechanisms for ferrites of low anisotropyIEEE Transactions on Magnetics, 1966
- Relationship between Single Crystal and Effective Polycrystalline Anisotropy Constants in FerritesJournal of Applied Physics, 1958
- Crystalline Magnetic Anisotropy in Zinc Manganese FerritePhysical Review B, 1951
- Propriétés magnétiques des ferritesJournal de Physique et le Radium, 1951