Title :
Multiple magnetic image reflection in perpendicular recording
Author :
Khizroev, S. ; Gustafson, R.W. ; Howard, J.K. ; Kryder, M.H. ; Litvinov, D.
Author_Institution :
Seagate Res., Pittsburgh, PA, USA
fDate :
9/1/2002 12:00:00 AM
Abstract :
Three-dimensional modeling was performed to show that integration of a single-pole head with a relatively wide leading pole and a medium with a soft underlayer (SUL) gives rise to the field multiplication effect due to the "multiple image reflection" of the flux. generated in the hard-layer region located between the leading pole and the SUL. Magnetic force microscopy and spin-stand experiments were utilized to support the theory.
Keywords :
magnetic flux; magnetic force microscopy; magnetic heads; magnetic mirrors; perpendicular magnetic recording; soft magnetic materials; field multiplication effect; flux; hard-layer region; leading pole; magnetic force microscopy; multiple image reflection; multiple magnetic image reflection; perpendicular recording; relatively wide leading pole; single-pole head; soft underlayer; spin-stand experiments; three-dimensional modeling; Magnetic flux; Magnetic flux leakage; Magnetic force microscopy; Magnetic heads; Magnetic recording; Magnetic separation; Mirrors; Perpendicular magnetic recording; Reflection; Saturation magnetization;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2002.802700
