Theoretical magnetic phase diagram for the (Fe0.65Ni0.35

In this work the mean-field renormalization-group approach for a random-bond Ising model with competitive interactions was used in order to obtain the magnetic phase diagram and to compare with previous experimental results for the system (${\mathrm{Fe}}_{0.65}$${\mathrm{Ni}}_{0.35}$${)}_{1\mathrm{\ensuremath{-}}\mathit{x}}$${\mathrm{Mn}}_{\mathit{x}}$ [J. Hesse, Hyperfine Interact. 47, 357 (1989)]. We also obtained the paramagnetic, ferromagnetic, antiferromagnetic, spin glass, and reentrant-spin-glass phases. The theoretical magnetic phase diagram is in good agreement with the experimental results.