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Very High-Density and Low-Cost Perpendicular Magnetic Recording Media Including New Layer-Structure "U-Mag".
- Source :
- IEEE Transactions on Magnetics; Feb2005, Vol. 41 Issue 2, p572-576, 5p
- Publication Year :
- 2005
-
Abstract
- We have fabricated a new layered structure, named "U-mag," for perpendicular magnetic recording media, in terms of stacked flints including a very thin (2 nm) ferromagnetic (Co) intermediate layer and lattice spacing control layers. The formed medium having a 100-nm soft magnetic underlayer with high coercivity over 6 kOe and sufficient nucleation field (-1.5 kOe) shows higher signal-to-noise ratio (SNR) than a medium with a conventional Ru underlayer. The detailed microstructures of the U-mag medium were also revealed by a transmission electron microscope with an energy dispersive spectrometer. A double Co intermediate layer gave a significant improvement in the SNR compared to a single Co layer. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00189464
- Volume :
- 41
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Magnetics
- Publication Type :
- Academic Journal
- Accession number :
- 16213611
- Full Text :
- https://doi.org/10.1109/TMAG.2004.838070