Magnetization studies in the system Fe1−<i>x</i>Cr<i>x</i>BO3

Abstract

Temperature-dependent magnetization studies from 4.2 to 600 °K have been made for the solid solution system Fe1−xCrxBO3 where 0⩽x⩽0.95. A rapid decrease is observed in the saturation magnetization with increasing x at 4.2 °K up to 0.40, after which a broad compositional minimum is found up to x=0.60. Compositions in the range of 0.40⩽x⩽0.60 display unusual magnetization behavior as a function of temperature in that maxima and minima are present in the curves below the Curie temperatures. Possible explanations for these anomalies are discussed.