Temperature and orientation effects on the magnetic properties of doped barium ferrite thin films

Author

Li, Jinshan ; Sinclair, Robert ; Rosenblum, Stephen S. ; Hayashi, Hidetaka

Author_Institution

Dept. of Mater. Sci. & Eng., Stanford Univ., CA, USA

Volume

30

Issue

6

fYear

1994

fDate

11/1/1994 12:00:00 AM

Firstpage

4050

Lastpage

4052

Abstract

We report for the first time temperature and orientation effects on the magnetic properties of sputtered Ti, Zn doped barium ferrite (BaFe₁₂O₁₉, BaM) thin films in the temperature range of 173-523 K. Coercivity, H_c, and saturation magnetization, M_s, of perpendicularly and randomly oriented films showed different dependence on temperature. The temperature dependence of the thin film crystalline anisotropy energy was measured to determine its anisotropy field. A very small BaM thin film dH_c/dT was measured in the vicinity of room temperature, which is substantially smaller than those of undoped or Ti and Co doped powder

Keywords

barium compounds; coercive force; ferrites; magnetic anisotropy; magnetic thin films; magnetisation; sputtered coatings; 173 to 523 K; BaFe₁₂O₁₉:Ti,Zn; anisotropy field; coercivity; crystalline anisotropy energy; magnetic properties; orientation effects; perpendicularly oriented films; randomly oriented films; saturation magnetization; sputtered Ti,Zn doped barium ferrite thin films; temperature effects; Anisotropic magnetoresistance; Barium; Ferrites; Magnetic field measurement; Magnetic films; Magnetic properties; Temperature dependence; Temperature distribution; Transistors; Zinc;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.333986

Filename

333986