Ordered three-dimensional arrays of monodispersed Mn₃O ₄ nanoparticles with a core-shell structure and spin-glass behavior

Don't forget your coat! Monodispersed Mn₃O₄ nanoparticles, each encased in a thin shell of MnO₂, have been prepared for the first time. Ordered three-dimensional arrays of cubic symmetry were formed by self-assembly (see transmission electron microscope image). The nanoparticles exhibit strong interactions between the core and shell, resulting in spin-glass behavior. (Figure Presented).