Ferromagnetic Resonance Characterization of Nano-FePt by Electron Spin Resonance
Joint Authors
Forbes, A.
Motaung, D. E.
Sideras-Haddad, E.
Nkosi, S. S.
Keartland, J.
Gavi, H. M.
Mwakikunga, Bonex
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-12-04
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Electron spin resonance (ESR) measurements at room temperature and X-band microwave frequency were performed on highly crystalline FePt system thin films.
Fairly high DC static magnetic field absorption of about 300 mT was observed in these films.
We attribute the high field absorption to ferromagnetic resonance (FMR).
Upon increasing iron content in FePt system, no detectable spin waves modes were identified already at room temperature.
This signifies a homogeneous distribution of the magnetization across the films.
We qualitatively attributed such homogeneity distribution in the films to self-assembly of these Fe–Pt system nanoparticles.
The results revealed that the FePt system contains hyperfine coupling with sextet I=5/2 exhibiting a phase reversal behaviour compared to FMR line.
Both iron content and crystallite size increased the FMR intensity making the films good candidates for large data storage mediums and spintronics.
American Psychological Association (APA)
Nkosi, S. S.& Gavi, H. M.& Motaung, D. E.& Keartland, J.& Sideras-Haddad, E.& Forbes, A.…[et al.]. 2012. Ferromagnetic Resonance Characterization of Nano-FePt by Electron Spin Resonance. Journal of Spectroscopy،Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-459305
Modern Language Association (MLA)
Nkosi, S. S.…[et al.]. Ferromagnetic Resonance Characterization of Nano-FePt by Electron Spin Resonance. Journal of Spectroscopy No. 2013 (2013), pp.1-6.
https://search.emarefa.net/detail/BIM-459305
American Medical Association (AMA)
Nkosi, S. S.& Gavi, H. M.& Motaung, D. E.& Keartland, J.& Sideras-Haddad, E.& Forbes, A.…[et al.]. Ferromagnetic Resonance Characterization of Nano-FePt by Electron Spin Resonance. Journal of Spectroscopy. 2012. Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-459305
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-459305