Abstract
Abstract Multi-metal prussian blue analogs may include both ferromagnetic and antiferromagnetic exchange interactions between different metal ions and exhibit the novel magnetism. We obtained a mixed ferri-ferromagnetic prussian blue analog Cu 0.47 Ni 0.48 Mn 0.55 [Fe(CN) 6 ]·XH 2 O by chemical coprecipitation method. The compound has a typical face-centered cubic lattice and shows novel mixed ferri-ferromagnetic properties. Temperature dependence of χ − 1 curve indicates a dominant ferromagnetic coupling above 50 K. Hysteresis curves suggest the presence of long range ordering at 5 K. The decrease of the field-cooled magnetization values around 5 K is due to the anti-ferromagnetic interaction between Mn 2 + and Fe 3 + . Unusual magnetic properties originate from the coexistence of ferromagnetic and antiferromagnetic exchange interactions.
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