| Title: |
Soft magnetic nanocomposite CoZrTaB–SiO2 thin films for high-frequency applications |
| Authors: |
Cronin, Darragh; Lordan, D.; Wei, G.; McCloskey, P.; Mathúna, C. O.; Masood, A. |
| Contributors: |
Science Foundation Ireland |
| Source: |
Journal of Applied Physics ; volume 127, issue 24 ; ISSN 0021-8979 1089-7550 |
| Publisher Information: |
AIP Publishing |
| Publication Year: |
2020 |
| Description: |
With increasing switching frequencies for passive components in power supplies, there lies a demand for materials that exhibit excellent soft magnetic properties at high frequencies. Electrical resistivity is of particular importance, as a high value is of significant importance in suppressing eddy current loss. The present work is focused on improving material with ultra-soft magnetic properties at high working frequencies by making nanocomposite CoZrTaB–SiO2 thin films using co-sputtering. The films show an increasing trend of resistivity with SiO2 incorporation, attributed to the high degree of electron scattering based on a metal–insulator–metal network. The ultra-low coercivity (Hc ∼ 0.1 Oe) and enhanced anisotropic field (Hk ∼ 42 Oe) of films were correlated to the ferromagnetic exchange coupling, which were significantly affected by a small concentration of SiO2. Relatively high permeability, ultra-low loss response, and high ferromagnetic resonance frequency make this material a promising candidate for replacing conventional magnetic cores in passives, in addition to noise suppression applications. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| DOI: |
10.1063/5.0013416 |
| DOI: |
10.1063/5.0013416/15248081/243903_1_online.pdf |
| Availability: |
https://doi.org/10.1063/5.0013416; https://pubs.aip.org/aip/jap/article-pdf/doi/10.1063/5.0013416/15248081/243903_1_online.pdf |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ ; https://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.BEEA0686 |
| Database: |
BASE |