Effects of nitrogenated NiP seedlayer on Co-alloy thin film media

Author

Pang, S.I. ; Wang, J.P. ; Chong, T.C.

Volume

37

Issue

4

fYear

2001

fDate

7/1/2001 12:00:00 AM

Firstpage

1494

Lastpage

1496

Abstract

In this study, nitrogen gas was introduced during deposition of NiP seedlayer for Co-alloy thin film media. Thermal stability and magnetic switching volume for thin film media with different nitrogen content in NiP seedlayer and NiP-N seedlayer thickness were studied using dynamic coercivity measurements. It was found that nitrogenated NiP seedlayer could further enhance the effects of magnetic decoupling and magnetic switching volume reduction that has been demonstrated by NiP before. Delta-M peak and domain size for Co-alloy thin film media were significantly decreased when nitrogenated NiP is used as a seedlayer. Surface roughness of NiP layer was also reduced when nitrogen gas is introduced

Keywords

chromium alloys; cobalt alloys; coercive force; exchange interactions (electron); ferromagnetic materials; grain size; magnetic domains; magnetic recording noise; magnetic switching; magnetic thin films; nickel alloys; phosphorus alloys; platinum alloys; sputter deposition; surface topography; tantalum alloys; thermal stability; CoCrPtTa; NiP; delta-M peak; domain size; dynamic coercivity measurements; magnetic decoupling; magnetic switching volume; surface roughness; thermal stability; thin film media; Coercive force; Magnetic domains; Magnetic films; Magnetic switching; Nitrogen; Sputtering; Thermal stability; Thickness measurement; Transistors; Volume measurement;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.950881

Filename

950881