Loading...
Terahertz Faraday rotation of SrFe12O19 hexaferrites enhanced by Nb-doping
Hu, Zimeng Stenning, Gavin B. G. Koval, Vladimir Wu, Jiyue Yang, Bin Leavesley, Alisa Wylde, Richard Reece, Michael J. Jia, Chenglong Yan, Haixue
Hu, Zimeng
Stenning, Gavin B. G.
Koval, Vladimir
Wu, Jiyue
Yang, Bin
Leavesley, Alisa
Wylde, Richard
Reece, Michael J.
Jia, Chenglong
Yan, Haixue
Advisors
Editors
Other Contributors
EPub Date
Publication Date
2022-10-04
Submitted Date
Collections
Files
Loading...
Article
Adobe PDF, 3.7 MB
Other Titles
Abstract
The magneto-optical and dielectric behaviour of M-type hexaferrites as permanent magnets in the THz band are essential for potential applications like microwave absorbers and antennas, while are rarely reported recent years. In this work, single-phase SrFe12-xNbxO19 hexaferrite ceramics were prepared by conventional solid state sintering method. Temperature-dependent of dielectric parameters were investigated here to search the relationship between dielectric response and magnetic phase transition. The saturated magnetization increases by nearly 12% while the coercive field decreases by 30% in the x = 0.03 composition compared to that of the x = 0.00 sample. Besides, Nb substitution improves the magneto-optical behaviour in the THz band by comparing the Faraday rotation parameter from 0.75 (x = 0.00) to 1.30 (x = 0.03). The changes in the magnetic properties are explained by a composition-driven increase of the net magnetic moment and enhanced ferromagnetic exchange coupling. The substitution of donor dopant Nb on the Fe site is a feasible way to obtain multifunctional M-type hexaferrites, as preferred candidates for permanent magnets, sensors and other electronic devices.
Citation
Hu, Z., Stenning, G. B. G., Koval, V., Wu, J., Yang, B., Leavesley, A., Wylde, R., Reece, M. J., Jia, C., & Yan, H. (2022). Terahertz Faraday rotation of SrFe12O19 hexaferrites enhanced by Nb-doping. ACS Applied Materials and Interfaces, 14(41), 46738–46747. https://doi.org/10.1021/acsami.2c13088
Publisher
American Chemical Society
Journal
ACS Applied Materials and Interfaces
Research Unit
DOI
10.1021/acsami.2c13088
PubMed ID
PubMed Central ID
Type
Article
Language
Description
This document is the Accepted Manuscript version of a Published Work that appeared in final form in [ACS Applied Materials and Interfaces], copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [https://pubs.acs.org/doi/full/10.1021/acsami.2c13088].
Series/Report no.
ISSN
1944-8244
EISSN
1944-8252