Title :
MFM imaging of bit transitions in 5 Gbit/in2 CoCrPtTa media
Author :
Phillips, G.N. ; Suzuki, T.
Author_Institution :
Inf. Storage Mater. Lab., Toyota Technol. Inst., Nagoya, Japan
fDate :
3/1/1998 12:00:00 AM
Abstract :
In this study a quantitative analysis of magnetic force microscope images of bit transitions in media suitable for 5 Gbit/in2 applications is made. Bit transitions written between 10 kfci and 400 kfci and DC erased domain features have been observed by using two types of MFM tips. Transition widths, the size of percolations in transitions and the cross track correlation length relative to DC erased domain features are reported upon. A comparison between cross track correlation lengths and media noise is made along with a discussion of the domain structure of tracks and percolations between bits written at very high kfci
Keywords :
chromium alloys; cobalt alloys; ferromagnetic materials; hard discs; magnetic domains; magnetic force microscopy; magnetic recording noise; magnetic thin films; percolation; platinum alloys; tantalum alloys; CoCrPtTa; DC erased domain features; MFM imaging; bit transitions; cross track correlation lengths; domain structure; hard disks; media noise; percolations; transition widths; Image analysis; Length measurement; Magnetic analysis; Magnetic domains; Magnetic field measurement; Magnetic force microscopy; Magnetic forces; Magnetization; Predictive models; Volume measurement;
Journal_Title :
Magnetics, IEEE Transactions on
