Free-standing complex oxide membranes using hybrid MBE

Free-standing oxide films can be used to create symmetry-mismatched and non-equilibrium heterostructures. In this talk, we will present a detailed study for the synthesis of complex oxide nanomembranes with thickness ranging from 1 unit cell to several 100 nm. Combining X-ray diffraction, electrical transport, and dielectric property measurements, we show high quality nanomembranes of SrTiO₃ that can be exfoliated and transferred onto dissimilar substrates. We will discuss the implication of these structures on their physical properties.