Microstructure and Elemental Composition of Nanopowders and Films of Sm3Fe5O12 Rare-Earth Garnet Ferrites

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

“…The choice of the temperature regime and the amount of alkali in the synthesis were determined by the optimal properties of the samples, which were confirmed by the results of previous studies described in the work [ 22 ].…”

“…The films formed on the Al 2 O 3 substrate were used as the samples. The results of studying the Sm 3 Fe 5 O 12 powders obtained with identical synthesis parameters are presented in another work [ 22 ]. It was important for the test that the surface of the samples was sufficiently flat; this is necessary due to the technological limitations of the AFM method; namely, surface irregularities (large and sharp changes in heights of more than 10 μm) knock out the oscillating cantilever from the operating mode, which diminishes the quality of the experiment.…”

“…The structure of the Al 2 O 3 substrate material as the investigating methods of magnetic properties of the thin film structures were reported in our previous studies [ 22 , 30 , 31 ]. It should be noted that when scanning the maximum possible area of 100 × 100 μm 2 , the surface consists of particles with sizes of 50–600 nm and height differences of 800 nm ( Figure 5 ).…”

“…The synthesis of powders was carried out using the hydrothermal method. The advantages, parameters and stages of this method were previously described in detail by us and the authors of other works [ 19 , 20 , 21 , 22 , 23 ].…”

“…The chemical reactions that occurred during the synthesis are described in detail in [ 22 ]. A schematic representation of the synthesis stages of the samples under study is shown in Figure 1 .…”