Magnetic Properties and Microstructure of FePt(BN, Ag, C) Films

The microstructure and magnetic properties of FePt(BN, Ag, C) granular films grown on the MgTiON intermediate layer with and without the MoC inserting layer were studied. Without the MoC inserting layer, the 6 nm thick FePt film is continuous, which favors the domain wall motion magnetization revers...

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Bibliographic Details
Published in:Coatings (Basel) 2018-10, Vol.8 (10), p.358
Main Authors: Tsai, Jai-Lin, Chen, Yu-Ren, Chen, Jyun-You, Hsu, Ting-Wei, Dai, Cheng, Hsu, Chia-Jen
Format: Article
Language:English
Subjects:
Anisotropy
Carbon
Coercivity
Contact angle
Domain walls
Glass substrates
Grain growth
Grains
Intermetallic compounds
Iron compounds
Magnetic properties
Magnetic tape
Magnetism
Magnetization reversal
Microscopy
Microstructure
Morphology
Platinum compounds
Thin films
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Summary:The microstructure and magnetic properties of FePt(BN, Ag, C) granular films grown on the MgTiON intermediate layer with and without the MoC inserting layer were studied. Without the MoC inserting layer, the 6 nm thick FePt film is continuous, which favors the domain wall motion magnetization reversal process and shows a lower out-of-plane coercivity (Hc) value of 6.7 kOe. The FePt(BN, Ag, C) granular film was grown in ball- and square-like grains with an almost vertical contact angle, and the out-of-plane coercivity (Hc) was increased to 15.5 kOe. When the MoC with a thickness of 3 nm was capped on the MgTiON intermediate layer, the FePt grains with and without (BN, Ag, C) segregants were both formed in large trapezoidal islands with a low contact angle morphology. The out-of-plane Hc value changed from 14.9 to 13.2 kOe and the reduced coercivity was due to larger grain sizes and a lower ordering degree of the FePt(BN, Ag, C) film.
ISSN:2079-6412
2079-6412
DOI:10.3390/coatings8100358