The role of the fluctuation of exchange interactions in a disordered binary ferrimagnetic alloy is investigated. It is proposed that a number of interesting phenomena due to the so called frustration of exchange bonds, such as the possibility of reentrant ferrimagnetic phase, may appear in a new amorphous ferrimagnetic alloy, although at the present time the main interest of experimentalists is directed to obtain an amorphous ferrimagnetic alloy which has a compensation point in the vicinity of room temperature, because of its potential device applications.
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T. Kaneyoshi (1986) studied this question.