SrTiO3 buffering effect on Pb12xLaxTiO3 thin films prepared by pulsed laser deposition
نویسندگان
چکیده
Thin films of phase-pure perovskite PLT (Pb0.95La0.05Ti0.9875O3) were deposited in situ onto Si, Pt/Ti/SiO2 /Si, and SrTiO3 /Si substrates by pulsed laser deposition from stoichiometric targets. No Pb loss was observed in the near-surface region. The blocking of the interdiffusion between inner Si substrate and the outer PLT films by SrTiO3 buffer layer was evidenced using x-ray diffraction ~XRD! and secondary ion mass spectrometry ~SIMS! analyses. The formation of TiO2 second phase in PLT/Pt/Ti/SiO2 /Si films was indicated by XRD and SIMS spectra to be the outward diffusion of Ti atoms from the underlying Ti layer through the Pt layer, reacting with ambient O2 at the PLT-to-Pt interface. © 1996 American Institute of Physics. @S0003-6951~96!02024-4#
منابع مشابه
Optical Properties of Nitrogen-Substituted Strontium Titanate Thin Films Prepared by Pulsed Laser Deposition
Perovskite-type N-substituted SrTiO3 thin films with a preferential (001) orientation were grown by pulsed laser deposition on (001)-oriented MgO and LaAlO3 substrates. Application of N2 or ammonia using a synchronized reactive gas pulse produces SrTiO3-x:Nx films with a nitrogen content of up to 4.1 at.% if prepared with the NH3 gas pulse at a substrate temperature of 720 °C. Incorporating nit...
متن کاملPulsed laser deposition and characterization of Bi3.25Nd0.75Ti3O12 thin films buffered with La0.7Sr0.3MnO3 electrode
Bi3.25Nd0.75Ti3O12 (BNT) ferroelectric thin films with a thickness of f0.5 Am, on substrates of Pt/Ti/SiO2/Si, (100) SrTiO3 and (100) MgO, with a 0.4-Am-thick La0.7Sr0.3MnO3 (LSMO) layer as bottom electrode, were deposited via pulsed laser deposition. The multilayer thin films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrical measurement. The LSMO ...
متن کاملPhase transitions and domain stabilities in biaxially strained (001) SrTiO3 epitaxial thin films
Related Articles Ferroelectric and electrical characterization of multiferroic BiFeO3 at the single nanoparticle level Appl. Phys. Lett. 99, 252905 (2011) Defect enhanced optic and electro-optic properties of lead zirconate titanate thin films AIP Advances 1, 042144 (2011) Ultrafast switching of ferroelastic nanodomains in bilayered ferroelectric thin films Appl. Phys. Lett. 99, 182906 (2011) P...
متن کاملInducing exchange bias in La0.67Sr0.33MnO3−δ/SrTiO3 thin films by strain and oxygen deficiency
We present an exchange bias (EB) effect of variable size in La0.67Sr0.33MnO3−δ single and La0.67Sr0.33MnO3−δ/SrTiO3 (LSMO/STO) bilayers grown on STO substrates. Samples have been prepared by pulsed laser deposition (PLD) and high-pressure sputter deposition (HSD) in oxygen atmosphere at different oxygen pressures. Increased out-of-plane lattice parameters of the LSMO layers and reduced Curie te...
متن کاملLongitudinal Magneto-Optical Kerr Effect in Ce:YIG Thin Films Incorporating Gold Nanoparticles
We report an experimental study on optical and magneto-optical properties of Cesubstituted yttrium iron garnet thin films incorporating gold nanoparticles. Au nanoparticles were formed by heating Au thin film on cubic quartz and garnet substrate in vacuum chamber and a Ce:YIG layer was deposited on them by the aid of Pulsed laser deposition method. A large enhancement of the longitudinal Kerr e...
متن کامل