A STUDY OF THE SHORT-RANGE ORDER STATE OF NI3FE ALLOY

Electrical resistivity method has been used to study the short range o rder (SRO) state of Ni3Fe alloy. Annealing Ni3Fe alloy at approximatel y 10-degrees-C above the critical temperature T(c) followed by an isoc hronal anneal to higher temperatures, increases electrical resistivity with increase in temperature. On the other hand annealing the alloy a pproximately 20-degrees-C above T(c) followed by isochronal anneal to higher temperatures shows an electrical resistivity minimum. These two different behaviours of the Ni3Fe alloy have been attributed to the p resence of microdomain type SRO and homogeneous SRO states respectivel y.