During a research on multifunctional materials all functional properties that can be triggered with external stimulus are o vital importance. When considering multiferroics the external stimulus is mainly the electric field, which in addition to the changes in magnetization also induces caloric effect. In turn, this effect generate changes in lattice dynamics, therefore, we need to precisely understand it. This was our motivation to develop the theory of electrocaloric effect, which accurately describes and enables a quantitative calculation of the effect.
COBISS.SI-ID: 1002235
Experiments on a localized and controlled photo-reduction of silver were carried out on a AgCl single crystal that was exposed to a UV-laser light. The study showed that for a pulsed-laser beam with a high peak power (>20W) the ablation threshold of the AgCl was exceeded, while at lower peak powers no ablation was detected. We showed that the formation of photo-reduced silver aggregates decreases the ablation threshold and that the formation of a continuous silver trace on the AgCl single crystal is possible when the power density of the laser beam is further reduced.
COBISS.SI-ID: 1002491