Title :
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
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;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2007.894554
