Title :
Recording field analysis of narrow-track SPT head with side-shields
Author :
Kanai, Y. ; Matsubara, R. ; Watanabe, H. ; Mohammed, O.A. ; Muraoka, H. ; Nakamura, Y.
Author_Institution :
Niigata Inst. of Technol., Kashiwazaki, Japan
Abstract :
Perpendicular recording of 107 Gb/in/sup 2/ demonstration has been carried out by the combination of single-pole head (SPT) and double-layered medium. In order to achieve higher areal densities, obtaining strong recording field in a narrow-track width in an SPT head is indispensable for both higher linear and track densities. In this paper, recording density of 1 Tb/in/sup 2/ is assumed and the recording field of an SPT head is investigated using 3-D FEM analysis. Side-yoke shields are set and the structure is optimized to reduce the side-writing field while maintaining the recording field strength.
Keywords :
digital magnetic recording; finite element analysis; magnetic disc storage; magnetic fields; magnetic heads; magnetic shielding; perpendicular magnetic recording; 3D FEM analysis; areal densities; double-layered medium; narrow-track SPT head; narrow-track width; perpendicular recording; recording field analysis; recording field strength; side-shields; side-yoke shields; single-pole head; Coils; Magnetic heads; Magnetic materials; Magnetic recording; Perpendicular magnetic recording; Writing;
Conference_Titel :
Joint NAPMRC 2003. Digest of Technical Papers [Perpendicular Magnetic Recording Conference]
Conference_Location :
Monterey, CA, USA
Print_ISBN :
0-7803-7746-X
DOI :
10.1109/NAPMRC.2003.1177066
