Effects of structural disorder on the transport properties of B2-phase Fe0.52Al0.48 alloy films

The influence of the ol der-disorder structural transition on the transport properties of Fe-rich B2-phase Fe0.52Al0.48 is alloy films has been invest igated. The disordered alloy film was obtained by vapor-quenching depositio n onto glass substrates cooled by liquid nitrogen. The electric resistance of the ordered and disordered Fe0.52Al0.48 alloy films have been measured i n the 5-300 K temperature range in the presence and absence of a magnetic f ield of 0.5T. The influence of the order-disorder structural transition on the location of the resistance minimum at low temperature was analyzed with in the framework of the "variable-range-hopping conductivity" approach.