A Recording Density Study of Advanced Barium-Ferrite Particulate Tape

A magnetic tape with a 65-nm-thick magnetic layer containing fine barium-ferrite particles was produced using an advanced precision coating process. Using a giant magneto-resistive head on a drum tester, a signal-to-noise ratio of 23.5 dB was achieved at a linear density of 200 kfci, indicating the...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2006-10, Vol.42 (10), p.2312-2314
Main Authors: Nagata, T., Harasawa, T., Oyanagi, M., Naoto Abe, Saito, S.
Format: Article
Language:English
Subjects:
Atomic force microscopy
Barium-ferrite
Coating
Coatings
Coercive force
Cross-disciplinary physics: materials science
rheology
Density
Drums (containers)
Exact sciences and technology
Feasibility
Magnetic anisotropy
Magnetic films
Magnetic heads
magnetic particles
Magnetic recording
Magnetic tape
magnetic tape recording
Magnetism
Materials science
Noise levels
Other topics in materials science
Perpendicular magnetic anisotropy
Physics
Recording
recording density
Saturation magnetization
Signal to noise ratio
Thermal stability
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Description
Summary:A magnetic tape with a 65-nm-thick magnetic layer containing fine barium-ferrite particles was produced using an advanced precision coating process. Using a giant magneto-resistive head on a drum tester, a signal-to-noise ratio of 23.5 dB was achieved at a linear density of 200 kfci, indicating the feasibility of approximately 7 Gb/in 2 recording density
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2006.878675