Recording characteristics at a channel rate over 300 mb/s in a helical-scan tape system

Author

Suzuki, K. ; Shirai, T. ; Watanabe, T. ; Mikami, Y. ; Fukuda, S. ; Ozue, T.

Author_Institution

Yokohama Res. Center, Sony Corp. Micro Syst. Network Co., Yokohama, Japan

Volume

40

Issue

4

fYear

2004

fDate

7/1/2004 12:00:00 AM

Firstpage

2419

Lastpage

2421

Abstract

Recording characteristics at high-linear density were investigated using a spin-stand tape tester. Low-noise metal obliquely evaporated tape with a 40-nm magnetic layer was used. Read signal level and nonlinear transition shift of a thin-film head was compared with that of a metal-in-gap head. A prototype helical-scan tape drive with a thin-film head and a giant magnetoresistive head was developed to investigate the recording characteristics at channel rates over 300 Mb/s. A sufficient signal-to-noise ratio of 18 dB was obtained at a channel rate of 300 Mb/s with a read track width of 0.8 μm and a linear density of 376 kFRPI.

Keywords

giant magnetoresistance; magnetic heads; magnetic tapes; magnetic thin films; spin systems; 0.8 micron; 18 dB; 300 Mbit/s; 40 nm; channel rate; giant magnetoresistive head; helical-scan tape system; high-linear density; low-noise metal; magnetic layer; metal obliquely evaporated tape; metal-in-gap head; nonlinear transition shift; read signal level; recording characteristics; signal-to-noise ratio; spin-stand tape tester; thin-film head; Anisotropic magnetoresistance; Frequency dependence; Giant magnetoresistance; Magnetic anisotropy; Magnetic heads; Magnetic recording; Perpendicular magnetic anisotropy; Prototypes; System testing; Transistors; GMR; Giant magnetoresistive; ME; head; helical-scan tape system; metal obliquely evaporated; tape; thin-film head;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2004.829186

Filename

1325524