Magnetic properties of (Mn1-x Vx)Sb2O4 with one-dimensional magnetic arrays

The magnetic properties of mangan-vanadium antimonate solid solution (Mn1-xVx)Sb2O4 (X = 0 to 0.6) with the tetragonal TX2O4 structure (T = Pb4+, Sn4+ X = Pb2+ or T = Mn2+ Fe2+, Co2+, Ni2+; X = Sb3+, As3+) were investigated. Magnetic measurements on the polycrystalline specimens have shown that characteristic ferromagnetic behavior appears in the case that x is larger than 0.1, whereas the final compound MnSb2O4 is an antiferromagnet with the Neel temperature T-N = 60.5 K. The magnetic isotherms of the solid solution at low temperatures show ferromagnetic jumps at low fields but do not tend to saturate up to 5 T. The zero-field cooling magnetic susceptibility has a maximum at T-c = 57 K, which is independent of both the vanadium concentration x and the frequencies of the applied external fields.