Microstructure and magnetic properties of (001) oriented FePt/B{sub 4}C composite films

Journal Article · Wed Nov 14 23:00:00 EST 2007 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.2815482· OSTI ID:21064458

Yang, F J; Hao, Wang; Wang, H B; Cao, X; Yang, C P; Li, Q; Zhou, M J; Chong, Y M; Zhang, W J ^[1]

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1. Faculty of Physics and Electronic Technology and Key Laboratory of Ferro- and Piezo-Electric Materials and Devices, Hubei University, Wuhan 430062 (China)

FePt/B{sub 4}C multilayer composite films have been prepared by magnetron sputtering and subsequent annealing in vacuum. It was found that the B{sub 4}C layers effectively serve as spacers to separate the FePt layers, enhancing (001) orientation of FePt alloy. Our results show that highly (001) oriented [Fe{sub 45}Pt{sub 55}(8 nm)/B{sub 4}C (4 nm)]{sub 3} film with satisfactory perpendicular coercivity (4.75 kOe) has significant potential as a perpendicular recording medium.

• OSTI ID: 21064458
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 10 Vol. 102; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANNEALING
BORON CARBIDES
COERCIVE FORCE
CRYSTAL STRUCTURE
IRON ALLOYS
LAYERS
MAGNETIC PROPERTIES
MICROSTRUCTURE
PLATINUM ALLOYS
SPUTTERING
SURFACE COATING
THIN FILMS