Preparation and characterization of iron-chromium cyanide molecular magnet nanoparticles protected by poly(vinylpyrrolidone)

Iron-chromium cyanide molecular magnet nanoparticles with different size have been synthesized by using poly(vinylpyrrolidone) as a matrix. The nanoparticles are uniform and highly dispersed. There are magnetic exchange interactions between chromium and iron ions. With of the size of the nanoparticles changing, the systems have different magnetic behavior.