Title :
Low inductance double-sided Metal-In-Gap nano composite slider using Fe-Ta-N magnetic film system for 250 Mb/in2 recording
Author :
Goto, R. ; Kawai, T. ; Yamazaki, M. ; Tsuneda, F. ; Suwabe, S. ; Sakaguchi, I. ; Iwama, A.
Author_Institution :
Electron. Devices Works, Hitachi Metals Ltd., Tochigi, Japan
fDate :
11/1/1994 12:00:00 AM
Abstract :
We studied some characteristics of a double-sided Metal-In-Gap (DMIG) nano composite slider that has a low inductance structure, Fe-Ta-N type of magnetic film and new geometrical configuration of the gap area. The inductance of this head is approximately 1.0 nH/T2 . The electrical performance of this head has been evaluated with 5.5 μm Track Width and 0.25 μm Gap Length for 1800 Oe media. O/W is less than -34 dB at 53 kFCI. Output voltage is more than 150 nVp-p/(um.m/s.turns) at 53 kFCI. This performance is seen to be promising for 250 Mb/in2 recording
Keywords :
iron alloys; magnetic disc storage; magnetic heads; magnetic thin film devices; tantalum alloys; 0.25 micron; 5.5 micron; Fe-Ta-N magnetic film system; FeTaN; double-sided metal-in-gap nano composite slider; electrical performance; gap length; geometrical configuration; hard disks; low inductance structure; magnetic heads; output voltage; track width; Electric variables; Ferrites; Inductance; Magnetic cores; Magnetic films; Magnetic heads; Magnetic materials; Magnetic recording; Saturation magnetization; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
