Scanning ferromagnetic resonance microscopy and resonant heating of magnetite nanoparticles: Demonstration of thermally detected magnetic resonance

F. Sakran*, A. Copty, M. Golosovsky, D. Davidov, P. Monod

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

The surface scanning ferromagnetic resonance (FMR) was analyzed using inductive microwave detection and thermal detection. The patterned layers of dispersed magnetite Fe3O4 nanoparticles were used to demonstrate low-field FMR images with spatial resolution of 15 μm. The localized heating of magnetite nanoparticles via FMR absorption was also demonstrated which was controlled by an external dc magnetic field. The results show that sensitivity in inductive microwave detection at low power was limited by presence of paramagnetic impurities in material of probe.

Original languageEnglish
Pages (from-to)4499-4501
Number of pages3
JournalApplied Physics Letters
Volume84
Issue number22
DOIs
StatePublished - 31 May 2004

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