Magnetization of small amorphous particles
- 1 March 1982
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 53 (3) , 2252-2254
- https://doi.org/10.1063/1.330790
Abstract
Amorphous ferromagnetic particles are approximated by a theory which assigns, at random, exchange interactions between various parts of a ferromagnetic sphere. These interactions are randomly selected from a gaussian distribution with a standard deviation of 0.3, and include negative exchange values for the lower end of the distribution. The magnetization versus applied field curve is calculated with a specific Ritz model for such a sphere which has a radius of 200 Å and no anisotropy. The result is that the magnetization curve for such a sphere is essentially the same as that of a regular ferromagnet, with a somewhat smaller but constant exchange interaction.This publication has 3 references indexed in Scilit:
- Magnetic Properties of Amorphous Particles Produced by Spark ErosionPhysical Review Letters, 1981
- Magnetization curve of zero-anisotropy sphereJournal of Applied Physics, 1981
- Pressure as a parameter in the study of dilute magnetic alloysAdvances in Physics, 1979