Performance evaluation of discrete track perpendicular media for high recording density

Author

Soeno, Yoshikazu ; Moriya, Makoto ; Kaizu, Akimasa ; Takai, Mitsuru

Author_Institution

Devices Dev. Center, TDK Corp., Nagano, Japan

Volume

41

Issue

10

fYear

2005

Firstpage

3220

Lastpage

3222

Abstract

Read-write (RW) performance of a discrete track perpendicular recording medium was evaluated. It was confirmed that track following was available by using the pre-formed servo pattern. Byte-error-rate (BER) evaluations showed the written signal on the discrete track medium was stable due to the effect of discrete tracks and grooves for preventing side-writing. The extendibility of this technology was evaluated using a signal-to-noise-ratio (SNR) simulation using the Landau-Lifshitz-Gilbert (LLG) method. The result showed that this medium has a potential for achieving a higher SNR at higher track density.

Keywords

error statistics; magnetic heads; magnetic recording noise; perpendicular magnetic recording; BER; Landau-Lifshitz-Gilbert method; SNR simulation; byte-error-rate evaluation; discrete track perpendicular recording media; high recording density; high track density; performance evaluation; pre-formed servo pattern; read-write performance; signal-to-noise-ratio simulation; written signal; Bit error rate; Disk recording; Magnetic heads; Magnetic materials; Magnetic recording; Perpendicular magnetic anisotropy; Perpendicular magnetic recording; Resists; Servomechanisms; Signal to noise ratio; Discrete track perpendicular recording media; RW performance; high track density; pre-formed servo pattern;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2005.854777

Filename

1519259