In this paper we present a phenomenological approach computing the behavior of a cobalt particle by the Della Torre–Pinzaglia–Cardelli DPC model. The identification of the model is realized using a suitable numerical procedure and a set of data obtained using a micromagnetic numerical model based on Brown’s equations. In order to simplify the identification, a class of hysterons, which describes the magnetization process of a single domain in agreement with the Stoner and Wohlfarth theory, is used. The accuracy of the reconstructed magnetization cycles using the DPC model and the save of the computation time with respect to the micromagnetic numerical model are shown.
Magnetization dependent vector model and single domain nanostructures
CARDELLI, Ermanno;FABA, Antonio
2009
Abstract
In this paper we present a phenomenological approach computing the behavior of a cobalt particle by the Della Torre–Pinzaglia–Cardelli DPC model. The identification of the model is realized using a suitable numerical procedure and a set of data obtained using a micromagnetic numerical model based on Brown’s equations. In order to simplify the identification, a class of hysterons, which describes the magnetization process of a single domain in agreement with the Stoner and Wohlfarth theory, is used. The accuracy of the reconstructed magnetization cycles using the DPC model and the save of the computation time with respect to the micromagnetic numerical model are shown.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
