Novel Approach to Reduce Grain Size in CoCrPt-Oxide Perpendicular Recording Media

Author

Piramanayagam, S. ; Pock, C. ; Ong, C. ; Shi, J. ; Mah, C. ; Lu, L.

Author_Institution

Data Storage Inst., Singapore

fYear

2006

fDate

8-12 May 2006

Firstpage

11

Lastpage

11

Abstract

This paper presents an alternative approach to reduce the grain size in recording media probably without affecting the anisotropy constant so much. It can be seen that the medium deposited on the new underlayers shows a smaller average grain size (6 nm) as well as a narrow grain size distribution (25%) as compared to 8 nm and 35% that is observed for the medium on conventional underlayer. The grain sizes are measured from center-to-center and the repoorted values include grain boundary as well.

Keywords

chromium alloys; cobalt alloys; grain boundaries; grain size; magnetic anisotropy; magnetic thin films; perpendicular magnetic recording; platinum alloys; CoCrPt-JkO; anisotropy constant; grain boundary; grain size distribution; perpendicular recording media; underlayer; Anisotropic magnetoresistance; Grain size; Magnetic anisotropy; Magnetic recording; Magnetosphere; Memory; Perpendicular magnetic anisotropy; Perpendicular magnetic recording; Size measurement; Thermal stability;

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.2006.375420

Filename

4261445