Title :
High coercivity and low noise media using glass substrate
Author :
Tang, Xiaoxia ; Reed, Bill ; Zubeck, Robert ; Hollars, Dennis ; Goodson, Keith
Author_Institution :
Conner Disk Div., Milpitas, CA, USA
fDate :
11/1/1994 12:00:00 AM
Abstract :
To improve the recording performance of magnetic media on a glass substrate, we have investigated the effect of coating a glass substrate with additional thin reactive films before sputtering conventional Cr and Co alloy films. NiP3, TiSi2, Cr, or C were used for reactive layers. With a proper reactive layer, the optimized glass substrate media had a coercivity equivalent to textured Al substrate media and noise lower than Al textured media. Macromagnetic performance and read-write performance were evaluated. The correlation of magnetic performance with film microstructure was determined using XRD, TEM, and AFM characterization techniques
Keywords :
X-ray diffraction; atomic force microscopy; chromium; chromium alloys; cobalt alloys; coercive force; ferromagnetic materials; glass; magnetic disc storage; magnetic recording noise; nickel compounds; sputtered coatings; substrates; titanium compounds; transmission electron microscopy; AFM characterization; C; Cr; NiP3; TEM; TiSi2; XRD; coercivity; film microstructure; high coercivity media; low noise media; macromagnetic performance; optimized soda-lime glass substrate; read-write performance; recording performance; sputtering; thin reactive films; Chromium alloys; Coatings; Cobalt alloys; Coercive force; Glass; Magnetic films; Magnetic noise; Magnetic recording; Sputtering; Substrates;
Journal_Title :
Magnetics, IEEE Transactions on
