Micromagnetic simulation of neutron scattering from spherical nanoparticles: Effect of pore-type defects
Mesoscale and Nanoscale Physics
2023-02-01 v1 Materials Science
Abstract
We employ micromagnetic simulations to model the effect of pore-type microstructural defects on the magnetic small-angle neutron scattering cross section and the related pair-distance distribution function of spherical magnetic nanoparticles. Our expression for the magnetic energy takes into account the isotropic exchange interaction, the magnetocrystalline anisotropy, the dipolar interaction, and an externally applied magnetic field. The signatures of the defects and the role of the dipolar energy are highlighted and the effect of a particle-size distribution is studied. The results serve as a guideline to the experimentalist.
Keywords
Cite
@article{arxiv.2207.09164,
title = {Micromagnetic simulation of neutron scattering from spherical nanoparticles: Effect of pore-type defects},
author = {Evelyn Pratami Sinaga and Michael P. Adams and Mathias Bersweiler and Laura G. Vivas and Eddwi H. Hasdeo and Jonathan Leliaert and Philipp Bender and Dirk Honecker and Andreas Michels},
journal= {arXiv preprint arXiv:2207.09164},
year = {2023}
}
Comments
arXiv admin note: text overlap with arXiv:2205.07552