Magnetic Properties and Microstructure of FeOxFeFePt and FeOxFePt Films
Joint Authors
Tsai, Jai-Lin
Chen, Po-Ran
Chen, Yi-Hsiu
Luo, Qi-Shao
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-09-18
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
The Fe(6 nm)/FePt film with perpendicular magnetization was deposited on the glass substrate.
To study the oxygen diffusion effect on the coupling of Fe/FePt bilayer, the plasma oxidation with 0.5~7% oxygen flow ratio was performed during sputtered part of Fe layer and formed the FeOx(3 nm)/Fe(3 nm)/FePt trilayer.
Two-step magnetic hysteresis loops were found in trilayer with oxygen flow ratio above 1%.
The magnetization in FeOx and Fe/FePt layers was decoupled.
The moments in FeOx layer were first reversed and followed by coupled Fe/FePt bilayer.
The trilayer was annealed again at 500°C and 800°C for 3 minutes.
When the FeOx(3 nm)/Fe(3 nm)/FePt trilayer was annealed at 500°C, the layers structure was changed to FeOx(6 nm)/FePt bilayer due to oxygen diffusion.
The hard-magnetic FeOx(6 nm)/FePt film was coupled with single switching field.
The FeOx/(disordered FePt) layer structure was observed with further annealing at 800°C and presented soft-magnetic loop.
In summary, the coupling between soft-magnetic Fe, FeOx layer, and hard-magnetic L10 FePt layer can be controlled by the oxygen diffusion behavior, and the oxidation of Fe layer was tuned by the annealing temperature.
The ordered L10 FePt layer was deteriorated by oxygen and became disordered FePt when the annealed temperature was up to 800°C.
American Psychological Association (APA)
Tsai, Jai-Lin& Chen, Po-Ran& Chen, Yi-Hsiu& Luo, Qi-Shao. 2013. Magnetic Properties and Microstructure of FeOxFeFePt and FeOxFePt Films. Journal of Nanomaterials،Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-1031636
Modern Language Association (MLA)
Tsai, Jai-Lin…[et al.]. Magnetic Properties and Microstructure of FeOxFeFePt and FeOxFePt Films. Journal of Nanomaterials No. 2013 (2013), pp.1-8.
https://search.emarefa.net/detail/BIM-1031636
American Medical Association (AMA)
Tsai, Jai-Lin& Chen, Po-Ran& Chen, Yi-Hsiu& Luo, Qi-Shao. Magnetic Properties and Microstructure of FeOxFeFePt and FeOxFePt Films. Journal of Nanomaterials. 2013. Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-1031636
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1031636