Application of the SAMR method to high magnetostrictive samples

Abstract Magnetostriction measurement by using the small angle magnetization rotation method (SAMR) has been performed in high magnetostrictive amorphous samples. To apply the SAMR method to these samples, a theoritical model about the influence of the internal stresses and magnetization distribution has been proposed. The dependence of the magnetostriction, λ s , with the temperature and applied stress was measured in as-cast and in different annealed samples. In the as-cast samples the existence of a stray field and a dependence of λ s with the applied stress has been observed.