Tin oxide overcoats for thin film magnetic recording media

Author

Novotny, V.J. ; Kao, A.S.

Author_Institution

IBM Almaden Res. Center, San Jose, CA, USA

Volume

26

Issue

5

fYear

1990

fDate

9/1/1990 12:00:00 AM

Firstpage

2499

Lastpage

2501

Abstract

Material and tribological properties of reactively sputtered tin oxide films were determined as a function of deposition conditions. Increased substrate deposition temperature is shown to improve hardness and to lower wear rate. An oxygen partial pressure of around 0.01 Pa yields maximum hardness and minimum stress and wear rate. Films prepared at these partial pressures and at 150°C are stoichiometric and crystalline. Thin-film magnetic recording media with lubricated tin oxide overcoats have low static friction and good start/stop features

Keywords

hardness; magnetic recording; sputtered coatings; storage media; tin compounds; wear; 0.01 Pa; 150 degC; SnO₂; crystalline; deposition conditions; hardness; minimum stress; overcoats; partial pressure; reactively sputtered; start/stop features; static friction; stoichiometric; substrate deposition temperature; thin film magnetic recording media; tribological properties; wear rate; Crystallization; Friction; Magnetic films; Magnetic materials; Magnetic recording; Sputtering; Stress; Substrates; Temperature; Tin;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.104776

Filename

104776