Effect of Storage Layer on Writeability of a Perpendicular Magnetic Recording Head

Author

Shukh, Alexander ; Judy, Jack H. ; van Ek, Johannes

Author_Institution

Seagate Technol., Bloomington

Volume

43

Issue

8

fYear

2007

Firstpage

3509

Lastpage

3511

Abstract

The effect of the storage layer on the writeability of a magnetic head for perpendicular recording was studied through micromagnetic and finite-element-method modeling. The results suggest that the permeability of the storage layer of double-layer perpendicular recording medium monotonically increases with the intergranular exchange. Increase of the storage layer permeability improves the writeability of the single-pole recording head and the gradient of the write field in the storage layer.

Keywords

finite element analysis; magnetic heads; magnetic permeability; micromagnetics; perpendicular magnetic recording; finite-element-method; intergranular exchange; micromagnetic modeling; permeability; perpendicular magnetic recording head; single-pole recording head; storage layer; write field; writeability; Anisotropic magnetoresistance; Finite element methods; Magnetic heads; Magnetic memory; Micromagnetics; Permeability; Perpendicular magnetic recording; Saturation magnetization; Soft magnetic materials; USA Councils; Finite-element method; micromagnetics; permeability; perpendicular magnetic recording; recording medium;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2007.894554

Filename

4277912