2011/09/19 by Sergey Erokhin, Erokhin, Sergey, Dmitry Berkov +4
Engineering · Materials Science · #FOS: Physical sciences #Magnetic Properties and Applications #Magnetic Properties of Alloys #Materials Science (cond-mat.mtrl-sci) #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Microstructure and Mechanical Properties of Steels
paper · pdf · doi:10.48550/arxiv.1109.4075
openalex publication_date 2011/09/19 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
A new methodology for micromagnetic simulations of magnetic nanocomposites is presented. The methodology is especially suitable for simulations of two-phase composites consisting of magnetically hard inclusions in a soft magnetic matrix phase. The proposed technique allows to avoid the unnecessary discretization of the 'hard' inclusions (these are normally in a single-domain state), but enables an arbitrary fine discretization of the 'soft' phase. The method is applied to the determination of the equilibrium magnetization state of an iron-based nanocomposite from the Nanoperm (FeZrBCu) family of alloys and to the calculation of the corresponding small-angle neutron scattering (SANS) cross-section. For this highly interesting material, the results of our simulations exhibit a remarkable agreement with the nontrivial 'clover-leaf' SANS cross-sections observed experimentally (A. Michels et al., Phys. Rev. B, v. 74, 134407 (2006)).