M. Miyazaki et al., FORMATION AND DECOMPOSITION OF DO3 ORDERED STRUCTURE IN SPUTTERED FE-AL MAGNETIC THIN-FILMS, Journal of applied physics, 74(1), 1993, pp. 766-768
Fe77.2Al22.8 and Fe70.5Al29.5 magnetic thin films with a thickness of
1 mum were prepared by a rf magnetron sputtering method, and the forma
tion and decomposition of DO3 ordered structure, Fe3Al, were examined
through x-ray diffraction analysis and conversion electron Mossbauer s
pectroscopy. The formation of DO3 ordered structure was confirmed in b
oth films obtained by annealing at 500 or 600-degrees-C. The DO3 order
ed structure in the Fe77.2Al22.8 Was unstable at temperatures above 70
0-degrees-C, leading to the decomposition into alpha-Fe and FeAl.