Title :
A single-pole-type head design for 400 Gb/in2 recording
Author :
Kanai, Yasushi ; Greaves, Simon J. ; Yamakawa, Kiyoshi ; Aoi, Hajime ; Muraoka, Hiroaki ; Nakamura, Yoshihisa
Author_Institution :
Dept. of Inf. & Electron. Eng., Niigata Inst. of Technol., Kashiwazaki, Japan
Abstract :
A single-pole-type head design for 400 Gb/in2 based on finite-element method (FEM) simulations is presented. The conditions required to generate a sufficient field for this areal density are shown. To reach this density various media were considered and written track widths, erase bands, signal-to-noise ratios, and written bit patterns were derived from Laudau-Lifshitz-Gilbert (LLG) simulations.
Keywords :
finite element analysis; magnetic heads; Laudau-Lifshitz-Gilbert simulations; areal density; erase bands; finite-element method; micromagnetic calculations; perpendicular magnetic recording; signal-to-noise ratios; single-pole-type head design; written bit patterns; written track widths; Anisotropic magnetoresistance; Educational programs; Finite element methods; Jitter; Magnetic analysis; Magnetic heads; Magnetic recording; Micromagnetics; Perpendicular magnetic recording; Signal to noise ratio; Finite-element methods; Laudau–Lifshitz–Gilbert (LLG) micromagnetic calculations; perpendicular magnetic recording; single-pole-type head;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2004.839073
