A study of the size and clustering effects of DyF samples.

The magnetic properties of DyF powders with a particle size of 16 nm-7 μm were studied. The saturation magnetization decreases with decreasing particle size. It was shown that magnetic moments are ordered according to the density function of the Lorentz distribution, and the disorder parameter decreases with increasing particle size.

Magnetic Studies of Superconductivity in the Ga-Sn Alloy Regular Nanostructures.

For applications of nanolattices in low-temperature nanoelectronics, the inter-unit space can be filled with superconducting metallic alloys. However, superconductivity under nanoconfinement is expected to be strongly affected by size-effects and other factors. We studied the magnetic properties and structure of the Ga-Sn eutectic alloy within regular nanopores of an opal template, to understand the specifics of the alloy superconductivity.

Size effect of DyF nanoparticles on Curie temperature.

A series of DyF nanoparticles samples were synthesized by a hydrothermal treatment in an autoclave at 140 °C, 160 °C, 200 °C, and 230 °C for 24 h. The samples were characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), and temperature dependence of magnetic susceptibility. It was found that DyF particles possessed an ellipsoidal shape and size varying from 16 to 225 nm.