Playback performance of ultrahigh-capacity tape media with nanosized composite advanced particle (NanoCAP)

Author

Inoue, T. ; Nakiri, K. ; Mitsuhashi, H. ; Fukumoto, M. ; Doi, T. ; Sasaki, Y. ; Kishimoto, M.

Author_Institution

Adv. Tape Div., Hitachi Maxell Ltd, Kyoto, Japan

Volume

42

Issue

3

fYear

2006

fDate

3/1/2006 12:00:00 AM

Firstpage

465

Lastpage

467

Abstract

We have developed nanosized composite advanced particles (NanoCAP) with spherical shape and high coercivity, and fabricated dual coated tape to evaluate playback performance. The spherical shape contributes to smooth surfaces and reduced boundary variation between the magnetic layer and underlayer. The fine particle size, 17 nm, yields low media noise and high signal-to-noise ratio. The high coercivity, compared to metal particulate media, contributes to high amplitude resolution (D50=170 kfci). We confirmed that write demagnetization is well restrained and that NanoCAP tape should show very good playback performance with a superior writer.

Keywords

coatings; coercive force; magnetic particles; magnetic tapes; nanocomposites; nanoparticles; 17 nm; NanoCAP tape; coercivity; magnetic layer; magnetic particle; media noise; nanosized composite advanced particle; particle size; smooth surfaces; tape media; write demagnetization; Coercive force; Iron; Magnetic anisotropy; Magnetic materials; Magnetic noise; Noise shaping; Perpendicular magnetic anisotropy; Saturation magnetization; Scanning electron microscopy; Signal to noise ratio; Coercivity; magnetic particle; media noise;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2005.862761

Filename

1597441