Irreversible magnetization process and switching mechanism in L10 FePt thin films

Irreversible magnetization process and switching mechanism in L10 FePt thin films

The irreversible characteristics of the magnetization and the switching mechanism have been investigated in granular FePt films with L10 phase prepared by sputtering on a polymer substrate. The films display an extremely large magnetic anisotropy with a random distribution of the magnetization easy...

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Veröffentlicht in:AIP advances 2017-05, Vol.7 (5), p.056206-056206-8
Hauptverfasser: Lisfi, A., Pokharel, S., Akioya, O., Alqhtany, N. H., Wuttig, M.
Format: Artikel
Sprache:eng
Schlagworte:
Domain walls
Intermetallic compounds
Iron compounds
Magnetic anisotropy
Magnetism
Magnetization reversal
Platinum compounds
Polymer films
Remanence
Substrates
Switching
Thin films
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Zusammenfassung:The irreversible characteristics of the magnetization and the switching mechanism have been investigated in granular FePt films with L10 phase prepared by sputtering on a polymer substrate. The films display an extremely large magnetic anisotropy with a random distribution of the magnetization easy axis. The magnetic instabilities and the irreversible magnetization are found to be controlled by domain wall, which is responsible for the magnetization reversal. Through remanence curves and ΔM plot, the nature of magnetic interactions was revealed to be positive exchange coupling.
ISSN:2158-3226
2158-3226
DOI:10.1063/1.4973759