Rauls, S.; Eggert, B.; Anwar, S. Md.; Lojewski, T.; Helbig, T.; Chumakov, A.; Bessas, D.; Abrudan, R.; Ollefs, K.; Potzger, K.; Fassbender, J.; Bali, R.; Wende, H.: Non-equilibrium phase regime and magnetic properties of co-evaporated Fe-V thin-films. Journal of Alloys and Compounds 1040 (2025), p. 183282/1-8
10.1016/j.jallcom.2025.183282
Open Access Version
Abstract:
At equiatomic composition, FeV alloys form metastable phases such as the B2 phase or a short-range ordered phase in favor of the equilibrium 6 phase. In this regime, structural, magnetic, and vibrational properties are strongly influenced by atomic disorder. For thermally co-evaporated Fe1-xVx thin-films, the non-equilibrium phase diagram is explored and the short-range ordered phase that forms at equiatomic compositions is compared to its base-centered cubic counterpart. The results indicate that within the short-range ordered thin-films, the structural disorder is accompanied by an increase in chemical order, i.e. Fe and V atoms are their respective preferential nearest neighbors. These observations are important for a better understanding of recrystallization in nonmagnetic, short-range ordered templates, in which crystallization can be selectively triggered.