Micromagnetic investigation of magnetization reversal in sphere-shaped ferromagnetic nanoparticle

Candra Kurniawan, Agus Tri Widodo, Dong Hyun Kim, Dede Djuhana

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)


In this paper, the magnetization reversal of sphere-shaped ferromagnetic nanoparticles has been investigated by means of micromagnetic simulation. Some ferromagnetic particles such as Cobalt, Iron, Nickel, and Permalloy were modeled with size variation from 50 nm to 100 nm. The discretization of the ferromagnetic model used a cell size of 2.5×2.5×2.5 nm3 considering the exchange length (lex) of the materials. The quasi-static magnetic field was induced into the nano-sphere to observe the magnetization response under time dependence. It is found that the coercivity values decrease as the sphere size increased, which was confirmed the experimental results. It is also observed that the domain structure of a single particle in remanence and ground state condition are identical. Therefore, the specific understanding of magnetization process and domain structures in ferromagnetic nanoparticles could be an important step in the development of nano-patterned magnetic memory storage.

Original languageEnglish
Title of host publicationMagnetism and its Application
EditorsBudi Purnama, Darminto, Risdiana
PublisherTrans Tech Publications Ltd
Number of pages6
ISBN (Print)9783035717044
Publication statusPublished - 2020
EventInternational Conference on Magnetism and Its Application, ICMIA 2019 - Surakarta, Indonesia
Duration: 20 Nov 201921 Nov 2019

Publication series

NameKey Engineering Materials
Volume855 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795


ConferenceInternational Conference on Magnetism and Its Application, ICMIA 2019


  • Domain-wall
  • Ferromagnetic
  • Magnetization
  • Micromagnetic
  • Nanoparticle


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