The creation of nanometer magnetic domain structure in artificially pinning hole of magneto-optical recording material

Author

Te-Ho Wu ; Wu, J.C. ; Chen, Bing-Mau ; Shieh, Han-Ping D.

Author_Institution

Dept. of Humanities & Sci., Nat. Yunlin Univ. of Sci. & Tech., Touliu, Taiwan

Volume

34

Issue

4

fYear

1998

fDate

7/1/1998 12:00:00 AM

Firstpage

1994

Lastpage

1996

Abstract

A novel method for pinning the magnetic domain in artificially pinning hole has been developed for magneto-optical (MO) thin film material Dy_x(FeCo)_1-x. The artificially pinning holes were fabricated using electron-beam lithography. Hole arrays with square, star, and circle shapes had been made in this study. However, the nanometer scale magnetic domains could be formed inside the hole arrays if the pinning hole geometry was not well defined, and the pinning domain may induce media noise

Keywords

cobalt alloys; dysprosium alloys; electron beam lithography; ferromagnetic materials; iron alloys; magnetic domains; magnetic recording noise; magnetic thin films; magneto-optical recording; perpendicular magnetic anisotropy; AFM; Dy_x(FeCo)_1-x; DyFeCo; MFM; artificially pinning hole; circle shapes; electron-beam lithography; hole arrays; magnetic domain pinning; magneto-optical recording material; media noise; nanometer magnetic domain structure; patterned substrate; perpendicular magnetic anisotropy; pinning hole geometry; pre-formatted pinning sites; square shapes; star shapes; Geometry; Magnetic domains; Magnetic materials; Magnetic noise; Magnetization; Magnetooptic recording; Nanostructures; Noise shaping; Perpendicular magnetic anisotropy; Shape;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.706768

Filename

706768