Title :
Simulations of perpendicular media for 400 Gb/in2
Author :
Greaves, Simon J. ; Kanai, Yasushi ; Muraoka, Hiroaki
Author_Institution :
Tohoku Univ., Sendai, Japan
Abstract :
Head and medium designs to support areal densities of 400 Gb/in2 were investigated using micromagnetic modeling. The use of side shields allows the track pitch to be reduced, but only by about 10 nm. Reducing the main pole width also permits higher track densities, but the erase band width does not reduce significantly with the pole width reduction. In addition, the erase band width increases at higher linear densities and forms an increasing fraction of the total track width.
Keywords :
magnetic heads; micromagnetics; perpendicular magnetic recording; areal densities; erase band width; head design; medium design; micromagnetic modeling; perpendicular media; perpendicular recording; pole width reduction; side shields; track densities; track pitch; Demagnetization; Grain size; Magnetic heads; Magnetic recording; Magnetostatics; Micromagnetics; Perpendicular magnetic recording; Soft magnetic materials; Tensile stress; Testing; Head; medium; micromagnetic modeling; perpendicular recording;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2004.839068
