LAUSR

Abstract Magnetic measurements on oriented single crystals of Ho 0.5 Dy 0.5 FeO 3 grown using optical floating zone furnace provide evidence for two spin reorientations of Fe 3 + magnetic sublattice viz., Γ 4 → Γ 1 → Γ 2 at temperatures T SR 1 = 49 K and T SR 2 = 26 K . As magnetic field along c axis increases, the sample resumes Γ 4 spin configuration and a large field is likely to disrupt the spin reorientation process. It is evident from isothermal magnetization along c axis that field induced Γ 1 → Γ 4 transition is feasible within the intermediate temperature range of T SR 1 - T SR 2 and can be triggered at a critical field. Such magnetic behavior is better understood as a consequence of anisotropic effective field, modified by the application of external magnetic field.