ORCID Profile
0000-0002-8870-5106
Current Organisation
University of Colorado at Colorado Springs
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
Publisher: AIP Publishing
Date: 14-11-2022
DOI: 10.1063/5.0124550
Abstract: We have explored dynamic magnetic properties of micron-sized Ni-coated carbon fibers embedded in a polymer matrix for electromagnetic interference shielding applications. These hollow magnetic cylinders exhibit unusual dynamic magnetic properties, which were measured with a broad-band ferromagnetic resonance system (FMR). We observe three families of FMR modes, which are connected to different physical locations within the cylinder. We develop a simple analytic model to explain these results and corroborate resonant mode profiles with micromagnetic simulations. We find excellent agreement between experimental results and theoretical models. Our work indicates that global demagnetizing factors are not appropriate for understanding the spin motions in these hollow cylinders. The FMR absorption observed in these hallow cylinders is very different from those observed in nanowires or solid cylinders. The field-swept envelope of all the observed FMR resonances is very broad, approximately μ0H = 1 T, with a linewidth of in idual modes around μ0ΔH = 250 mT. This can be important for electromagnetic shielding applications.
Publisher: American Physical Society (APS)
Date: 18-04-2016
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 06-2022
Location: United States of America
Location: Venezuela (Bolivarian Republic of)
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Ezio Iacocca.