Hydrothermal Synthesis of Various Magnetic Properties of Controlled Micro/Nanostructured Powders and Films of Rare-Earth Iron Garnet

In this study, the synthesis and magnetic properties of the rare-earth iron garnets Sm(3)Fe(5)O(12), Pr(3)Fe(5)O(12), and Er(3)Fe(5)O(12) (in the form of powders and thin films) are reported. According to the composition, shape, and size of particles, the optimal precipitant for the synthesis of Sm(3)Fe(5)O(12), Pr(3)Fe(5)O(12), and Er(3)Fe(5)O(12) films is an aqueous solution. The parameters for the synthesis of powders and films of the rare-earth iron garnets with micro- and nano-particles have been investigated and selected. The magnetic properties of these materials were studied; field dependencies of the magnetic moment (hysteresis loops) of nanostructured powders of iron garnets of samarium, praseodymium, and erbium in the range of +20 kOe to −20 kOe were obtained. The structural features of the Al(2)O(3) substrate on which the films were formed are also shown.