The application and evolution of reversible and irreversible torque magnetometry to particulate chrome dioxide

Author

Hoon, S.R. ; Lowe, J.

Author_Institution

Dept. of Math. & Phys., Polytech. of Manchester, UK

Volume

26

Issue

5

fYear

1990

fDate

9/1/1990 12:00:00 AM

Firstpage

1813

Lastpage

1815

Abstract

The field-dependent evolution of torque curves for CrO₂ tapes in reversible and irreversible regimes has been studied employing Fourier analysis and has been correlated with VSM (vibrating sample magnetometry) data. It is shown that the field dependence of the torque coefficients may be related to internal anisotropy fields, the remanent state, moment rotation, and reptation. The analysis is applicable to any anisotropic medium, while the schedules are of relevance to media performance under nonideal (nonsaturating) vector fields of magnetic recording processes

Keywords

Fourier analysis; chromium compounds; magnetic field measurement; magnetic tapes; CrO₂ tapes; Fourier analysis; anisotropic medium; field-dependent evolution; internal anisotropy fields; irreversible torque magnetometry; magnetic recording processes; media performance; moment rotation; remanent state; reptation; torque coefficients; torque curves; vibrating sample magnetometry; Anisotropic magnetoresistance; Coils; Loss measurement; Magnetic analysis; Magnetic anisotropy; Magnetic field measurement; Magnetometers; Particle measurements; Perpendicular magnetic anisotropy; Torque measurement;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.104535

Filename

104535