On the interpretation of magnetization data for antiferromagnetic nanoparticles

Daniel Esmarch Madsen, Steen Mørup, Mikkel Fougt Hansen

Research output: Contribution to journalJournal articleResearchpeer-review


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.
Original languageEnglish
JournalJournal of Magnetism and Magnetic Materials
Issue number1
Pages (from-to)95-99
Publication statusPublished - 2006


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