Title :
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
fDate :
9/1/1990 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
