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| Funkčné magnetické materiály s perovskitovou štruktúrou na báze oxidov vzácnych zemín a prechodných kovov | |
| Functional magnetic materials with perovskite structure based on rare earth and transition metal oxides | |
| Program: | VEGA |
| Project leader: | RNDr. Mihalik Marián, CSc. |
| Annotation: | Part of our project deals with multiferroic materials and another with functionality of materials with perovskitestructure in respect to hydrogen storage or application of colloid with nanoparticles for hyperthermia. The projectis targeted to substitutional solid solutions and construction of magnetic phase diagrams in RTO3 system (R = Nd, Pr, Sm, Tb, Dy and T = Ti, Cr, Mn, Fe). Oxygen content affects physical properties of this system. The defect structure can be used for hydrogen storage. Experimental techniques like crystal growth of single crystals, synthesis of magnetic nanoparticles and study of various physical properties are complemented by theoretical approach using Density functional theory. Our project serves as starting point for re-examining the effect of oxygen content on physical properties of RMnO3 multiferroic compounds. The concept of storing hydrogen in the vacancies in these compounds is novel as well smart hyperthermia based on colloid containing magnetic nanoparticles of manganites. |
| Duration: | 1.1.2022 – 31.12.2024 |