Effects of media orientation on noise, track width and thermal stability

Author

Taratorin, Alexander M. ; Klaassen, Klaas B. ; Marinero, Ernesto

Author_Institution

San Jose Res. Center, Hitachi Global Storage Technol., San Jose, CA, USA

fYear

2005

fDate

4-8 April 2005

Firstpage

1361

Lastpage

1362

Abstract

The goal of this study is to characterize the dependence of media recording parameters (DC and transition noise, track width and thermal stability) on the medium orientation ratio (OR), We used a set of longitudinal anti-ferromagnetically coupled (AFC) media with identical magnetic layers deposited on different substrates. These disks have similar Mrt (0.35-0.38 memu/cm²) and Hc (3600-3800 Oe) but the OR varies from 1.78 to 2.2. The experiments were performed using a longitudinal recording head with WW = 220 nm, RW = 140 nm.

Keywords

antiferromagnetic materials; magnetic recording noise; thermal stability; time-domain analysis; antiferromagnetically coupled media; longitudinal recording head; magnetic layers; media recording parameters; medium orientation ratio; noise media orientation; thermal relaxation; thermal stability; time-domain technique; track width; transition noise; Automatic frequency control; Couplings; Disk recording; Magnetic heads; Magnetic noise; Magnetic recording; Magnetosphere; Noise level; Tail; Thermal stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International

Print_ISBN

0-7803-9009-1

Type

conf

DOI

10.1109/INTMAG.2005.1464110

Filename

1464110