REVERSIBLE MAGENTIC SUSCEPTIBILITY OF THERMOMAGNETIZED MAGNETITE

Abstract

The authors attempted to find a correlation between the distortion of partial hysteresis cycles and the strength of the thermomagnetization field. Studied was the effect of thermomagnetization on the way in which the reversible magnetic susceptibility k depends on a constant magnetic field H. The magnetic susceptibility was measured with an AC bridge [7] at 44 kHz. The amplitude of the AC field was 0.1 Oe. To eliminate interference, the specimen (a cube 1 cm on a side) and sensor were placed inside a double Permalloy screen. Study results are discussed.