Influence of intergrain interactions and thermal agitation on microwave-assisted magnetization switching behavior of granular magnetic film

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Microwave-assisted magnetization switching (MAS) in a granular magnetic film is examined by computer simulation. Contrary to the macrospin calculation and the experiments on single magnetic dots reported so far, in which the switching field linearly decreases with increasing rf frequency and then sharply increases at the critical frequency, the granular film exhibits considerably broad MAS behavior against the rf frequency. This broad MAS behavior is mainly caused by the dispersion of magnetic properties and thermal agitation. On the other hand, intergrain dipolar and exchange interactions enhance the MAS effect in the granular film and suppress the MAS broadening.

Original languageEnglish
Article number023004
JournalApplied Physics Express
Volume10
Issue number2
DOIs
Publication statusPublished - 2017 Feb

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Influence of intergrain interactions and thermal agitation on microwave-assisted magnetization switching behavior of granular magnetic film'. Together they form a unique fingerprint.

  • Cite this