Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1805035 | Journal of Magnetism and Magnetic Materials | 2006 | 5 Pages |
Abstract
We have investigated the influence of anisotropy on the magnetization curves of antiferromagnetic nanoparticles. We show that if such curves are analyzed in a conventional way, i.e. using a Langevin function in combination with a linear term, this usually results in good quality fits, but with an apparent temperature dependence of parameters such as the magnetic moment per particle and the antiferromagnetic susceptibility. In order to avoid the problems associated with anisotropy as well as volume/moment distributions we propose that the initial susceptibility is used when analyzing the temperature dependence of the magnetic moment.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Daniel Esmarch Madsen, Steen Mørup, Mikkel Fougt Hansen,