Strain in SrTiO3 layers embedded in a scandate/titanate multilayer system
- Cite this paper as:
- Ávila D., Boese M., Heeg T., Schubert J., Luysberg M. (2008) Strain in SrTiO3 layers embedded in a scandate/titanate multilayer system. In: Richter S., Schwedt A. (eds) EMC 2008 14th European Microscopy Congress 1–5 September 2008, Aachen, Germany. Springer, Berlin, Heidelberg
Deposition of earth alkali titanate thin films on different substrates allows to tune the strain and, as consequence, their dielectric properties. In this sense, the large range of available lattice constants in rare earth scandates make them very useful candidates to serve as substrate materials for epitaxial growth. In this work we have employed aberration corrected high-resolution transmission electron microscopy (HRTEM) to quantify the strain in different scandate/titanate multilayers by using the geometrical phase analysis method . Besides, we applied electron energy loss spectroscopy (EELS) and ab initio calculations to obtain information about the effect of the strain on the electronic structure of these materials.