The dependence of media noise on the magnetic cluster size for Co based thin film media fabricated under ultra clean sputtering process

M. Takahashi; A. Kikuchi; H. Hara; H. Shoji

doi:10.1109/20.706619

The dependence of media noise on the magnetic cluster size for Co based thin film media fabricated under ultra clean sputtering process

M. Takahashi, A. Kikuchi, H. Hara, H. Shoji

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

The media noise performance is discussed quantitatively in connection with magnetic microstructure for Co based thin film media fabricated under Ultra Clean (UC) process. Results are summarized as follows : (1) The media noise decreases by reducing the dispersion of magnetic filed strength at transition, (2) The dispersion of magnetic field strength at transition is suppressed by the reduction of magnetic cluster size, and (3) The grain size reduction and the decrement of intergranular magnetic coupling play an important role for the improvement of recording performance though the reduction of magnetic cluster size.

Original language	English
Pages (from-to)	1573-1575
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	34
Issue number	4 PART 1
DOIs	https://doi.org/10.1109/20.706619
Publication status	Published - 1998 Dec 1

Keywords

Grain size
Intergranular magnetic coupling
Magnetic cluster
Media noise

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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abstract = "The media noise performance is discussed quantitatively in connection with magnetic microstructure for Co based thin film media fabricated under Ultra Clean (UC) process. Results are summarized as follows : (1) The media noise decreases by reducing the dispersion of magnetic filed strength at transition, (2) The dispersion of magnetic field strength at transition is suppressed by the reduction of magnetic cluster size, and (3) The grain size reduction and the decrement of intergranular magnetic coupling play an important role for the improvement of recording performance though the reduction of magnetic cluster size.",

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AU - Takahashi, M.

AU - Kikuchi, A.

AU - Hara, H.

AU - Shoji, H.

PY - 1998/12/1

Y1 - 1998/12/1

N2 - The media noise performance is discussed quantitatively in connection with magnetic microstructure for Co based thin film media fabricated under Ultra Clean (UC) process. Results are summarized as follows : (1) The media noise decreases by reducing the dispersion of magnetic filed strength at transition, (2) The dispersion of magnetic field strength at transition is suppressed by the reduction of magnetic cluster size, and (3) The grain size reduction and the decrement of intergranular magnetic coupling play an important role for the improvement of recording performance though the reduction of magnetic cluster size.

AB - The media noise performance is discussed quantitatively in connection with magnetic microstructure for Co based thin film media fabricated under Ultra Clean (UC) process. Results are summarized as follows : (1) The media noise decreases by reducing the dispersion of magnetic filed strength at transition, (2) The dispersion of magnetic field strength at transition is suppressed by the reduction of magnetic cluster size, and (3) The grain size reduction and the decrement of intergranular magnetic coupling play an important role for the improvement of recording performance though the reduction of magnetic cluster size.

KW - Grain size

KW - Intergranular magnetic coupling

KW - Magnetic cluster

KW - Media noise

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