A new method for analyzing torque curves of uniaxial anisotropic materials

Author

Shin, Sung-Chul ; Kim, Chang-Suk

Author_Institution

Dept. of Phys., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea

Volume

27

Issue

6

fYear

1991

fDate

11/1/1991 12:00:00 AM

Firstpage

4852

Lastpage

4854

Abstract

The authors present a simple analytic method to determine the intrinsic anisotropy energy K_u and the easy axis orientation δ of a magnetic film having a uniaxial anisotropy, using a measured torque curve. Analytical expressions for K_u and δ are explicitly derived using the peak value in the measured torque curve and the angle where the torque is zero. The authors confirmed that the experimental torque curves of TbFe thin films prepared at oblique incidence match well to the theoretical curves within 10% accuracy

Keywords

ferrimagnetic properties of substances; iron alloys; magnetic anisotropy; magnetic thin films; magnetic variables measurement; terbium alloys; torque; TbFe thin films; easy axis orientation; intrinsic anisotropy energy; magnetic film; oblique incidence; torque curves; uniaxial anisotropic materials; Anisotropic magnetoresistance; Magnetic analysis; Magnetic anisotropy; Magnetic field measurement; Magnetic films; Magnetic materials; Perpendicular magnetic anisotropy; Saturation magnetization; Shape; Torque measurement;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.278968

Filename

278968