Abstract
In the last decade we have obtained a deeper understanding of basic magnetism in alloys and a variety of new magnetic materials have been developed. In this review article two kinds of recent topics in these fields will be discussed. The first one is the magnetic properties of rare earth-3d transition intermetallics. After describing the magnetic properties of RMn2 very briefly, we discuss the magnetic properties of YMn2 in detail, particularly its magnetovolume effect which is closely related with the magnetic moment of Mn atoms below and above the magnetic transition temperature. Then, as an example of recent developments in soft magnetic materials, Fe-Ni-Cr alloys with very high permeability and low coercive force will be discussed including impurity effects on their magnetic properties.
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