Title :
Narrow-gap single-pole heads
Author :
Litvinov, Dmitri ; Wolfson, Jason ; Bain, James A. ; Gustafson, Roy W. ; Kryder, Mark H. ; Khizroev, Sakhrat
Author_Institution :
Seagate Res., Pittsburgh, PA, USA
fDate :
9/1/2002 12:00:00 AM
Abstract :
This work addresses the recording physics of narrow-gap single-pole heads (SPH) in perpendicular recording. It is found that narrow-gap SPHs have reduced sensitivity with respect to nonzero skew angles. It is shown that while the efficiency of a narrow-gap SPH is generally reduced, even for the case of a gapless SPH, the efficiency differs from the efficiency of a 1-μm-thick gap SPH only by a factor of two. The design parameter space for a narrow-gap SPH is investigated.
Keywords :
magnetic heads; perpendicular magnetic recording; design parameter space; efficiency; narrow-gap single-pole head; perpendicular magnetic recording; skew angle sensitivity; Data storage systems; Delay; Guidelines; Magnetic circuits; Magnetic flux; Magnetic heads; Magnetic recording; Perpendicular magnetic recording; Physics; Space technology;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2002.802780
