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Control of Rectifying and Resistive Switching Behavior in BiFeO3 Thin Films
BiFeO3 thin films have been grown on Pt/Ti/SiO2/Si substrates with pulsed laser deposition using Au as the top electrode. The resistive switching property of the Au/BiFeO3/Pt stack has been significantly...
PublicationsElectrical and optical spectroscopy on ZnO : Co thin films
Magnetic oxide semiconductors, for example the highly transparent and intrinsically n-type conducting zinc oxide doped with the 3d transition metal Co (ZnO:Co), are promising for the emerging field of...
PublicationsCathodoluminescence of large-area PLD grown ZnO thin films measured in transmission and reflection
Epitaxial ZnO thin films on sapphire substrates can be used as fast and laterally homogeneous scintillators to convert electrons into photons, for example for imaging purpose. We report on the improvement...
PublicationsProperties of phosphorus doped ZnO
We report the electrical and optical properties of P-doped epitaxial ZnO thin films grown heteroepitaxially on sapphire substrates or homoepitaxially on ZnO wafers grown by the hydrothermal method, respectively....
PublicationsOptical and structural properties of MgZnO/ZnO hetero- and double heterostructures grown by pulsed laser deposition
MgZnO thin films, MgZnO/ZnO heterostructures (HS) and double heterostructures (DHS) have been prepared on a-plane sapphire substrates by means of pulsed laser deposition (PLD). A linear blueshift of the...
PublicationsDonor-like defects in ZnO substrate materials and ZnO thin films
We have investigated donor-like defects in ZnO substrate material grown by three different methods, and in epitaxial ZnO thin films grown on sapphire by pulsed laser deposition. Temperature dependent Hall...
PublicationsTransport in ZnCoO thin films with stable bound magnetic polarons
Diluted magnetic ZnCoO films with 5 at.% Co have been fabricated by pulsed laser deposition on c-plane sapphire substrates and Schottky and Ohmic contacts have been prepared in top-top configuration. The...
PublicationsPulsed laser deposition of Fe- and Fe, Cu-doped ZnO thin films
Fe- and Fe, Cu-doped ZnO films have been grown on 10×10 mm2 c-plane sapphire by pulsed laser deposition (PLD). The targets were prepared from ZnO, Fe2O3, and/or CuO powder. The structural, electrical...
PublicationsResistive switching in polycrystalline YMnO3 thin films
We report a unipolar, nonvolatile resistive switching in polycrystalline YMnO3 thin films grown by pulsed laser deposition and sandwiched between Au top and Ti/Pt bottom electrodes. The ratio of the resistance...
PublicationsExploiting Memristive BiFeO3 Bilayer Structures for Compact Sequential Logics
Resistive switching devices are considered as one of the most promising candidates for the next generation memories and nonvolatile logic applications. In this paper, BiFeO 3 :Ti/BiFeO 3 (BFTO/BFO) bilayer...
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