Effect of fast head field rise time in perpendicular recording

Author

Lijie Guan ; Jian-Gang Zhu

Author_Institution

Data Storage Syst. Center, Carnegie Mellon Univ., Pittsburgh, PA, USA

fYear

2002

Abstract

Summary form only given. One of the key advantages of single-pole (SP) head/media with magnetic soft underlayer (SUL) perpendicular recording system is its ability to obtain larger write field in the media than that in longitudinal recording. However, such advantage is diminished as the dimension of the pole tip is reduced to increase areal recording density. In this work, the effects of head field rise time and media damping constant on switching field and switching time are investigated through micromagnetic simulations.

Keywords

magnetic heads; magnetic switching; micromagnetics; perpendicular magnetic recording; areal recording density; fast head field rise time; magnetic soft underlayer perpendicular recording; magnetic switching field; magnetic switching time; media damping constant; micromagnetic simulations; perpendicular recording; pole tip dimension; single-pole head/media; write field; Cobalt alloys; Damping; Image analysis; Magnetic heads; Magnetic switching; Magnetization; Microstructure; Noise figure; Nonhomogeneous media; Perpendicular magnetic recording;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2002. INTERMAG Europe 2002. Digest of Technical Papers. 2002 IEEE International

Conference_Location

Amsterdam, The Netherlands

Print_ISBN

0-7803-7365-0

Type

conf

DOI

10.1109/INTMAG.2002.1001150

Filename

1001150