Micromagnetic study on the dynamic susceptibility spectra of square-patterned ferromagnets

Dede Djuhana, J. A. Kadir, A. T. Widodo, D. H. Kim

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

2 Citations (Scopus)

Abstract

We have systematically investigated the dynamic susceptibility spectra of square-patterned ferromagnets in the mesoscopic scale from 100 nm to 500 nm by means of a micromagnetic simulation. The dynamic susceptibility spectra are obtained from the magnetization response under the applied field using Fourier transforms technique. We have observed that the frequency peak of the susceptibility spectra slightly increases as the length of the square-patterned increases. Interestingly, the frequency peak shows similar behavior compared to the frequency resonance from Kittel's formula. We have also analyzed the magnetic energies, where the demagnetization energy is larger than the exchange energy. It can be explained that the polar interaction primarily contributes to the resonance mode of the square-patterned ferromagnets.

Original languageEnglish
Title of host publicationAdvanced Materials Science and Technology - ICAMST 2013
PublisherTrans Tech Publications
Pages410-413
Number of pages4
ISBN (Print)9783038350316
DOIs
Publication statusPublished - 1 Jan 2014
Event2013 International Conference on Advanced Materials Science and Technology, ICAMST 2013 - Yogyakarta, Indonesia
Duration: 17 Sep 201318 Sep 2013

Publication series

NameAdvanced Materials Research
Volume896
ISSN (Print)1022-6680

Conference

Conference2013 International Conference on Advanced Materials Science and Technology, ICAMST 2013
CountryIndonesia
CityYogyakarta
Period17/09/1318/09/13

Keywords

  • Ferromagnet
  • Kittel's formula
  • Micromagnetic
  • Susceptibility spectra

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