Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1800753 | Journal of Magnetism and Magnetic Materials | 2012 | 4 Pages |
Abstract
Magnetic spectra of composites filled with carbonyl iron powder were measured at frequencies of up to 30 GHz. Two previously unknown intensive high-frequency peaks of magnetic absorption have been found at frequencies surpassing the ferromagnetic resonance frequency. The peaks may be attributed to Aharoni exchange resonance modes. The resonances are excited inside magnetically isolated nanocrystallites that constitute carbonyl iron grains. Features of homogeneous ferromagnetic resonance in carbonyl iron powder grains are also discussed.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Andrey N. Lagarkov, Vladimir N. Semenenko, Vladimir A. Chistyaev, Igor T. Iakubov,