Student: Ali Hafiz Waqas Ali
Supervisor: Mgr. Martin Setvín, Ph.D.
Perovskites (chemical formula ABO3 ) are currently at the forefront of interest in materials research because of their wide applicability in catalysis , photocatalysis , electronics  or spintronics. The class of perovskites contains hundreds of stable materials thanks to the wide choice of A and B cations and further possibilities of doping at all three sites. The surface science of perovskites represents a major challenge mainly due to the ternary composition of the bulk material and consequent complex behaviour of their surfaces.
The focus of this PhD thesis are bulk-terminated surfaces of perovskites from the class of titanates and tantalates (for example KTaO3, KNbO3, SrTiO3 and BaTiO3). A successful preparation of this surface termination has been reported just recently [5,6] and the combined atomic force microcopy/scanning tunnelling microscopy has proven as an invaluable tool for characterization of these surfaces at the atomic scale. The AFM/STM  will be supplemented by integral analysis techniques of surface science, such as LEED, XPS, and LEIS. A major aspect of the research will be ferroelectricity (spontaneous electric polarization)  often present in these materials, and the opportunities that ferroelectricity offers for production of renewable fuels (photocatalytic and pyrocatalytic effect).
The candidate will be encouraged to spend at least 6 months abroad with one of our collaborators in Austria, Germany or Japan.
The PhD position is funded with net salary 1000-1300 EUR.