Optimization of the epitaxial growth of ferroelectric PbTiO3 films

Abstract

In this work, I have grown ferroelectric PbTiO3 films on SrTiO3 single-crystal substrates by pulsed laser deposition. I have optimized the growth conditions, namely, the substrate temperature, the oxygen pressure, and the laser energy density to achieve high crystal quality films, stoichiometric and without any spurious phases in the Pb - Ti - O system, like TiO2. These growth conditions are found to be very narrow making the growth of high quality PbTiO3 films very elusive.