ABSTRACT
Prussian blue (PB) is one of the most famous coordination compounds mainly because of its intense blue color. This chapter focuses on the magnetic properties of nanoparticles of PB and its analogues (PBA) and particularly on the magnetic anisotropy that may become dominant when surface/volume ratio increases. In order to understand the magnetic behavior of PBA at the nanoscale, it briefly presents the general formulation of these systems because it has a large incidence on their physical behavior and particularly on their magnetic properties; and the nature of the exchange coupling between metal ions and the main factors that govern magnetic anisotropy in mononuclear NiII and CoII complexes. The chapter also focuses on the magnetic behavior of pure and core–shell nanoparticles studying the effect of size and surface anisotropy.
