Comparative Study of Reversal Times of the Magnetization in Ferromagnetic and Antiferromagnetic Nanoparticles

Abstract

We study the reversal times of the macrospine in individual ferromagnetic and antiferromagnetic nanoparticles by using matrix continued fraction method. It’s shown that, at a high damping regime and at the small barrier, the behavior the relaxation of the magnetization in the ferromagnatic is similar to those for antiferromagnetic nanoparticle.