Institute of Experimental Physics
Topic
The effect of oxygen content on the functionality of RMnO3 materials with a perovskite structure
PhD. program
Materials
Name of the supervisor
RNDr. Marián Mihalik, CSc.
Contact:
Receiving school
Faculty of Materials, Metallurgy and Recycling TUKE
Annotation
Orthorhombic RMnO3 materials with a perovskite structure exhibit functional properties due to the large variability of structural parameters and the variety of types of magnetic ordering in these materials. An open question is to what extent the targeted generation of vacancies in oxygen positions will affect the functional properties associated with the magnetic arrangement. We have shown that the impact of the preparation conditions of GdMnO3 in an atmosphere of air, Ar or O2 on the magnetic phase transition associated with the generation of a strong magneto-electric coupling is enormous. The topic of the doctoral study is to find out to what extent the defective structure created in this way affects the functionality of these materials. Successful completion of the doctoral studies requires mastering the preparation of suitable materials in the form of nanopowders, ceramics and crystals, as well as their characterization from the point of view of structure, magnetic and electrical properties.