Effect of Ta on the structure, magnetic properties, and recording performance of CoCrTaPt/Cr thin film media

Author

Sin, Kyusik ; Sivertsen, John M. ; Judy, Jack H.

Author_Institution

Dept. of Chem. Eng. & Mater. Sci., Minnesota Univ., Minneapolis, MN, USA

Volume

30

Issue

6

fYear

1994

fDate

11/1/1994 12:00:00 AM

Firstpage

4008

Lastpage

4010

Abstract

The effect of the addition of Ta on the structure, magnetic properties, and recording performance of CoCrTaPt/Cr alloy thin films were studied. The addition of Ta increased the out-of-plane (00.2) component of the c-axis in the hcp structure of CoCrTaPt. The in-plane coercivity showed a maximum at 2.5 at.% Ta and decreased monotonically up to Ta 8 at.% Ta. The normalized medium noise monotonically decreased with addition of Ta. The decrease in noise might be due to Cr or Ta segregation

Keywords

alloying additions; chromium; chromium alloys; cobalt alloys; coercive force; ferromagnetic materials; magnetic recording noise; magnetic thin films; platinum alloys; tantalum alloys; CoCrTaPt-Cr; CoCrTaPt/Cr alloy thin films; Ta addition; coercivity; magnetic properties; medium noise; recording; segregation; structure; Chromium; Coercive force; Magnetic films; Magnetic heads; Magnetic noise; Magnetic properties; Magnetic recording; Platinum alloys; Substrates; X-ray diffraction;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.333972

Filename

333972