Title :
Influence of media background on write/read performance in perpendicular media with an antiferromagnetic layer
Author :
Hwan-Soo Lee ; Bain, James A. ; Hong, Sooyoul ; Lee, Hwan-Soo
Author_Institution :
Data Storage Syst. Center, Carnegie Mellon Univ., Pittsburgh, PA, USA
Abstract :
A perpendicular medium with a soft underlayer (SUL) combined with a single-pole head (SPH) is the most common implementation of perpendicular recording. This paper discusses the influence of media background on the write/read performance for both media´s. The introduction of an antiferromagnetic (AFM) layer underneath SUL is also reported to help avoid additional media noise due to the domain wall instabilities of the SUL. However, such AFM layer can increase stray fields arising from the recording layer giving rise to notable effect on recording performance.
Keywords :
antiferromagnetic materials; giant magnetoresistance; magnetic heads; perpendicular magnetic recording; GMR heads; antiferromagnetic layer; perpendicular media; perpendicular recording; soft underlayer medium; write-read performance; Amorphous materials; Antiferromagnetic materials; Cobalt alloys; Data storage systems; Information systems; Magnetic heads; Magnetization; Manganese alloys; Perpendicular magnetic recording; Writing;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1464098
