Title :
Effect of fast head field rise time in perpendicular recording
Author :
Guan, Lijie ; Zhu, Jian-Gang
Author_Institution :
Data Storage Syst. Center, Carnegie Mellon Univ., Pittsburgh, PA, USA
fDate :
9/1/2002 12:00:00 AM
Abstract :
The switching field of perpendicular recording media has been studied with micromagnetic simulations. The dependence of the switching field on the head field rise time is investigated. It has been found that the short head field rise time coupled with small damping constant leads to a significant reduction of the switching field. The switching field also decreases with increasing in-plane head field.
Keywords :
magnetic heads; magnetic switching; perpendicular magnetic recording; fast head field rise time; in-plane head field; magnetic soft underlayer; micromagnetic simulations; perpendicular recording; perpendicular recording media; small damping constant; switching field; Anisotropic magnetoresistance; Damping; Hysteresis; Magnetic anisotropy; Magnetic heads; Micromagnetics; Perpendicular magnetic anisotropy; Perpendicular magnetic recording; Soft magnetic materials; Solids;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2002.801819
