The molybdates and borates are very attractive materials in several fields because of their wide variety of important physical properties, including ionic and electronic conductivity, ferroelectricity, magnetic properties, non-linear optical properties, catalytic activity.
I work in the field of molybdate systems which containing rare earth metal oxides. My objects are systems (La₂O₃-MoO₃, Nd₂O₃-MoO₃, La₂O₃-MoO₃-MgO, Nd₂O₃-MoO₃-MgO, Nd₂O₃-La₂O₃-MgO, and La₂O₃-MoO₃-B₂O₃). In these systems I study the glass formation region, liquid phase separation, structure of glasses and obtaining glass-ceramic and crystal phases (La₂Mo₂O9, LaMoBO6, and La₂Mo₃O₁₂).
It was established that the increase in MoO₃ content, at the expense of B₂O₃, with constant Ln₂O₃ decreases the thermal stability of the glasses, and the crystallization temperature, T_x, shifts to low temperatures in the glasses containing above 25 mol. %.T_x increases up to 560-800°C.
It was proven the existence MoO₆ units, MoO₄ isolated units and the transformation of BO₃ to BO₄ units in the structure of the glasses. By XAFS spectra we determined the Mo-O distance in the first coordination shell is at 1.75 Å. The coordination number against the oxygen varies between 6 and 5 depending on the composition. The La-O distance is in the range 2.47 Å and 2.55 Å. The average coordination number of La is 7. The distances Nd-O are longer, 2.73 Å, and the coordination number is near 7.

　Main tasks for my post?doc position in Japan:
1. Synthesizes of some glasses from La₂O₃-MoO₃-B₂O₃, Nd₂O₃-MoO3-B₂O₃ and ZnO-MoO₃-B₂O₃ systems.
2. I will try to crystallise same glasses by conventional and non traditional methods of crystallisation and receive some information about the structure of delivered materials.
3. To determine the particle size of crystallites precipitated in the amorphous matrix.
4. Determined optical properties of the glasses, glass-ceramic and ceramic material from the same systems.
5. Laser pattering of rare-earth molybdate crystal an glasses.