Enhanced thermal stability of Pt electrodes for flat epitaxial biferroic-YMnO3/Pt heterostructures

Bachelet, R.; Muralidharan, R.; Rigato, F.; Dix, N.; Martí, X.; Santiso, J.; Sánchez, F.; Fontcuberta, J.
November 2009
Applied Physics Letters;11/2/2009, Vol. 95 Issue 18, p181907
Academic Journal
We have investigated the thermal stability of platinum electrodes on oxide substrates for oxide-based devices. We show that flat epitaxial Pt(111) bottom electrodes, deposited on SrTiO3(111) and Al2O3(0001) substrates, can be stable against dewetting up to usual oxide-deposition temperatures (Ts) by increasing Pt film thickness (tPt) and preferably using SrTiO3(111) rather than Al2O3(0001) substrates. Subsequently, high-quality epitaxial biferroic YMnO3/Pt/oxide-substrate heterostructures have been grown. A diagram of morphological and crystalline quality versus tPt and Ts is given for both YMnO3/Pt/SrTiO3(111) and YMnO3/Pt/Al2O3(0001) heterostructures. These results shall guideline the growth of other functional oxide thin films on Pt electrodes.


Related Articles

  • SrBi[sub 2] Ta[sub 2] O[sub 9] ferroelectric thin film capacitors: degradation in a hydrogen ambient. Hartner, W.; Bosk, P.; Schindler, G.; Bachhofer, H.; M�rt, M.; Wendt, H.; Mikolajick, T.; Dehm, C.; Schroeder, H.; Waser, R. // Applied Physics A: Materials Science & Processing;2003, Vol. 77 Issue 3/4, p571 

    The effects of annealing in forming gas 5% hydrogen, 95% nitrogen; FGA) are studied on spin-coated SrBi[SUB2]Ta[SUB2]O[SUB9] SBT thin films. SBT films on a platinum bottom electrode are characterized with and without a platinum top electrode. Films are characterized by residual stress...

  • Processing and electrical properties of Pb (ZrxTi1-x)O3 (x=0.2–0.75) films: Comparison of metallo-organic decomposition and sol-gel processes. Klee, M.; Eusemann, R.; Waser, R.; Brand, W.; van Hal, H. // Journal of Applied Physics;8/15/1992, Vol. 72 Issue 4, p1566 

    Presents a study that examined the deposition of thin lead zirconate titanate films by sol-gel and by metallo-organic decomposition processes. Methodology; Characterization of the thin films using x-ray diffraction and scanning electron microscopy; Analysis of the electrical characteristics of...

  • Influence of deposition parameters on the preferred orientation of BST thin films for UFPA applications. S. Li; Y. Yang; W. Huang; T. Zhang; S. Wang // European Physical Journal - Applied Physics;May2008, Vol. 42 Issue 2, p95 

    Ba0.65Sr0.35TiO3(BST) thin films have been deposited by radio frequency magnetron sputtering. The effects of the deposition parameters on the crystallization and microstructure of BST thin films were investigated by X-ray diffraction and field emission scanning electron microscopy, respectively....

  • Polyaniline-CdS nanocomposites: effect of camphor sulfonic acid doping on structural, microstructural, optical and electrical properties. Raut, B.; Chougule, M.; Ghanwat, A.; Pawar, R.; Lee, C.; Patil, V. // Journal of Materials Science: Materials in Electronics;Dec2012, Vol. 23 Issue 12, p2104 

    Nanocomposites of CdS nanocrystals with conducting polyaniline doped with camphor sulfonic acid (CSA) have been prepared by spin coating technique and investigated by X-ray diffraction, field emission scanning electron microscopy (FESEM), fourier transform infra red spectroscopy (FTIR),...

  • Temperature dependence of the lowest frequency E g Raman mode in laser-synthesized anatase TiO2 nanopowder. Šćepanović, M. J.; Grujić-Brojčin, M.; Dohčević-Mitrović, Z. D.; Popović, Z. V. // Applied Physics A: Materials Science & Processing;Feb2007, Vol. 86 Issue 2, p365 

    Nanosized titanium dioxide (TiO2) powder was prepared by a laser-induced pyrolysis. Specific surface area of the as-grown powder measured by BET method was 109 m2/g. The grain size (14.5 nm) estimated from these data coincides well with the crystallite size (12.3 nm) determined by XRD...

  • Calcinations effect on the grain size distributions Al2O3 powder. Issa, Tarik Talib; Mohammed, Awattif A.; Kamil, Dunia // AIP Conference Proceedings;9/6/2012, Vol. 1476 Issue 1, p195 

    Fine of Al2O3 Powder was calcined at 200°C, 400°C, 600°C, and 800°C respectively for 2 hours under static air, x-ray diffraction, optical microscope and grain size distribution were done to analysis the resulting data after calcinations process. Batter particle size was achieved at...

  • Hydrothermal Synthesis and Characterization of Cobalt Doped α-Fe2O3. Suresh, R.; Vijayalakshmi, L.; Stephen, A.; Narayanan, V. // AIP Conference Proceedings;10/4/2010, Vol. 1276 Issue 1, p362 

    Nanocrystalline pure and Co-doped α-Fe2O3 were obtained via the hydrolysis of FeCl3 in the temperature range from 90 to 95 °C under reflux condition for 8 h and the precipitate (FeOOH) is annealed at 600 °C for 6 h. The samples are characterized by various techniques. FTIR spectrum of...

  • Investigation on Strengthening and Toughening Mechanisms of Ce-TZP/Al2O3 Nanocomposites. Gang Yang; Jun-Chu Li; Gao-Chao Wang; Yashima, Masatomo; Si-Lin Min; Tong-Cai Chen // Metallurgical & Materials Transactions. Part A;Jun2006, Vol. 37 Issue 6, p1969 

    The strengthening and toughening mechanisms of hot-pressed Ce-TZP/Al2O3 ceramics were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEMI, and transmission electron microscopy (TEM) methods. The results show that the contributions to the strength and toughness mainly come...

  • Synthesis of Sn-3.5Ag Alloy Nanosolder by Chemical Reduction Method. Hsin Jen Pan; Chao Yang Lin; Mohanty, Udit Surya; Jung Hua Chou // Materials Sciences & Applications;Oct2011, Vol. 2 Issue 10, p1480 

    The synthesis of Sn-3.5Ag alloy nanosolder was investigated by chemical reduction method. In this method, chemical precipitation was achieved by using sodium NaBH4 as a reducing agent and PVP (poly-m-vinyl 2-pyrrolidone) as a stabilizer. The experimental results obtained with different amounts...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics