Recent development of thin film materials for magnetic heads

Author

Kohmoto, Osamu

Author_Institution

Alabama Univ., Huntsville, AL, USA

Volume

27

Issue

4

fYear

1991

fDate

7/1/1991 12:00:00 AM

Firstpage

3640

Lastpage

3647

Abstract

Recent developments of soft magnetic film materials in the past decade are reviewed. Approximately 20 kinds of alloy systems with high saturation induction of more than 10 kG have been reported in the last decade, although there were only three conventional head materials: Mn-Zn ferrite, Permalloy, and Sendust. A particular focus of the review is nanocrystalline films and multilayer films. Also reviewed are improvements in single-layer homogeneous films of Fe, Fe-Si, Sendust, and Fe₁₆N₂. Almost all the materials reported are Fe-based alloys, and some alloys are nitrogen related: iron-nitride compounds or nitrogen-containing alpha -Fe or Sendust.

Keywords

Permalloy; annealing; coercive force; ferrites; magnetic heads; magnetic thin film devices; magnetic thin films; reviews; CoFeSiB; Fe-Co; Fe-Ni; FeAlNbNO; FeC-NiFe; FeCuNbSiB; FeN; FeNbSiBN-FeNbSiB; FeSi-SiN; FeTaC; FeTaN; FeTaNO; FeY-SiN; FeZrN; MnZn ferrite; Permalloy; Sendust; annealing; coercive force; magnetic heads; multilayer films; nanocrystalline films; review; saturation induction; single-layer homogeneous films; soft magnetic film materials; Coercive force; Crystalline materials; Crystallization; Ferrite films; Iron alloys; Magnetic films; Magnetic heads; Magnetic materials; Magnetostriction; Nitrogen; Nonhomogeneous media; Soft magnetic materials; Thermal resistance;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.102934

Filename

102934