Magnetization Switching of 2.5-inch CoCrPt Patterned Media by a Ring Head

Author

Kamata, Y. ; Kikitsu, A. ; Hieda, H. ; Sakurai, M. ; Naito, K. ; Bai, J. ; Ishio, S.

Author_Institution

Toshiba Corp., Kawasaki

fYear

2006

fDate

8-12 May 2006

Firstpage

761

Lastpage

761

Abstract

The magnetization reversal process of CoCrPt patterned media by a ring head was investigated. The magnetic force microscopy (MFM) was used to investigate the distributions of the coercivity (H_c) and the easy axis as well as the size of each dot. The large distribution for H_c causes the magnetization reversal defects. Possible origins of the large H_c distribution are the grain boundary observed for each grain and the large distribution of the easy axis of the CoCrPt.

Keywords

chromium alloys; cobalt alloys; coercive force; ferromagnetic materials; grain boundaries; magnetic force microscopy; magnetic heads; magnetic switching; magnetisation reversal; platinum alloys; CoCrPt; MFM; coercivity; easy axis; grain boundary; magnetic force microscopy; magnetization reversal process; magnetization switching; patterned media; ring head; Etching; Fabrication; Magnetic analysis; Magnetic fields; Magnetic force microscopy; Magnetic heads; Magnetic switching; Magnetization reversal; Milling; Scanning electron microscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2006. INTERMAG 2006. IEEE International

Conference_Location

San Diego, CA

Print_ISBN

1-4244-1479-2

Type

conf

DOI

10.1109/INTMAG.2006.376485

Filename

4262194