Anisotropic c-axis pinning in interfacial self-assembled nanostructured trifluoracetate-YBa2Cu3O7-x films

Gutierrez, J.; Puig, T.; Gibert, M.; Moreno, C.; Romà, N.; Pomar, A.; Obradors, X.
April 2009
Applied Physics Letters;4/27/2009, Vol. 94 Issue 17, p172513
Academic Journal
An all chemical route has been used to produce substrates—nanostructured by self-assembled oxide nanoislands—and to grow YBa2Cu3O7-x (YBCO) films on top. A great increase in the superconducting properties has been observed at high temperatures and magnetic fields parallel to the YBa2Cu3O7-x c-axis. The vortex pinning properties and the defects induced in the YBa2Cu3O7-x matrix have been investigated. We show that extended defects along the c-axis, induced in the YBCO matrix by the interfacial nanostructures, lay at the origin of the improved performances.


Related Articles

  • Microstructures and electrical properties of CaCu3Ti4O12 thin films on PT/TiO2/SiO2/Si substrates by pulsed laser deposition. Sung-Yun Lee; Soon-Mi Choi; Mi-Young Kim; Sang-Im Yoo; Ji Hye Lee; Jo, William; Young-Hwan Kim; Kyoung Jin Choi // Journal of Materials Research;10/14/2011, Vol. 26 Issue 19, p2543 

    We investigated microstructures, compositional distributions, and electrical properties of dielectric CaCu3Ti412 (CCTO) thin films deposited on Pt/TiO2/SiO2/Si substrates from 700 to 800°C by pulsed laser deposition. With increasing the deposition temperature from 700 to 750°C, the...

  • Growth And Characterization of ZnO/Fe3O4 Bilayer Structure on c-Al2O3 Substrate. Phase, D. M.; Master, Ridhi; Wadikar, A. D.; Choudhary, R. J. // AIP Conference Proceedings;7/16/2011, Vol. 1349 Issue 1, p747 

    In the present work, we report on the interfacial characterization of pulsed laser deposited epitaxial bilayer structures of ZnO/Fe3O4 on single crystal alumina (0001) substrates using x-ray photoelectron spectroscopy. X-ray diffraction (XRD) study revealed (111) oriented growth of Fe3O4 and...

  • Structural and optical properties of ZnCdO/ZnO multiple quantum wells grown on sapphire substrates using pulsed laser deposition. Jiang, J.; Zhu, L. P.; He, H. P.; Li, Y.; Guo, Y. M.; Cao, L.; Li, Y. G.; Wu, K. W.; Zhang, L. Q.; Ye, Z. Z. // Journal of Applied Physics;Oct2012, Vol. 112 Issue 8, p083513 

    High quality Zn0.92Cd0.08O/ZnO multiple quantum wells with smooth interfaces have been prepared on c-plane sapphire substrates by pulsed laser deposition. The periodic structure has been characterized by scanning transmission electron microscope and energy dispersive x-ray spectroscopy line...

  • Control morphology of nanostructures with electric field. Jonghyun Park; Wei Lu // Applied Physics Letters;8/17/2009, Vol. 95 Issue 7, p073110 

    We showed that the morphology of nanostructures on a dielectric substrate may be tuned by electric field. The collective action of surface energy, interface energy between nanostructures and the substrate, and electrostatic energy defines a thermodynamic force that drives surface diffusion. The...

  • Structural and magnetic properties of layered Ca3Co4O9 thin films. Moubah, R.; Colis, S.; Ulhaq-Bouillet, C.; Schmerber, G.; Viart, N.; Drillon, M.; Dinia, A.; Muller, D.; Grob, J. J. // European Physical Journal B -- Condensed Matter;Dec2008, Vol. 66 Issue 3, p315 

    Layered cobalt oxides Ca3Co4O9 thin films have been grown directly on c-cut sapphire substrates using pulsed laser deposition. X-ray diffraction and transmission electron microscopy characterizations show that the deposited films present the expected monoclinic structure and a texture along the...

  • Magnetic ordering anisotropy in epitaxial orthorhombic multiferroic YMnO3 films. Hsieh, C. C.; Lin, T. H.; Shih, H. C.; Hsu, C.-H.; Luo, C. W.; Lin, J.-Y.; Wu, K. H.; Uen, T. M.; Juang, J. Y. // Journal of Applied Physics;Nov2008, Vol. 104 Issue 10, p103912 

    Orthorhombic YMnO3 thin films with (200), (020), and (001) orientations were, respectively, obtained by pulsed laser deposition on SrTiO3(110), LaAlO3(110), and SrTiO3(001) substrates. The results demonstrate that the strain between film and substrate can serve as an alternative in transforming...

  • Change in the direction of anisotropy in PLD-fabricated Sm-Co thick film magnets. Nakano, M.; Yamaguchi, K.; Yanai, T.; Yamashita, F.; Fukunaga, H. // Journal of Applied Physics;Apr2009, Vol. 105 Issue 7, p07A729 

    Pulsed laser deposition (PLD) method with a substrate heating system enabled us to obtain Sm-Co thick film magnets with the thickness of several ten microns. With increasing a substrate temperature from 673 to 1073 K, the direction of anisotropy changed from in-plane to perpendicular one. The...

  • RAPID ANNEALING OF BLACK ZnO THIN FILMS PREPARED BY PULSED LASER DEPOSITION. Polyakov, B.; Petruhin, A.; Grigorjeva, L.; Kulis, P.; Tale, I. // Latvian Journal of Physics & Technical Sciences;1/15/2009, Vol. 46 Issue 1, p44 

    ZnO thin films were deposited by pulsed laser deposition (fluence 2.2 J/cm²) in vacuum on different substrates kept at room temperature. This temperature allowed for fast film growing, however the as-prepared films had low transparency. To improve this optical property, keeping up at the same...

  • Influences of Ni-5 at.%W Alloy Substrates on the Epitaxial Growth and Surface Morphologies of CeO Films Deposited by PLD. Shengping Zhu; Linfei Liu; Da Xu; Huaran Liu; Xiaokun Song; Dan Hong; Wang Ying; Yijie Li // Journal of Superconductivity & Novel Magnetism;Aug2011, Vol. 24 Issue 6, p1869 

    We fabricated CeO films using pulsed laser deposition (PLD) for YBaCuO coated conductors on Ni-5 at.%W alloy substrates and investigated the effect of Ni-5 at.%W tapes on the epitaxial growth and surface morphologies of CeO deposited on various substrates at various temperatures ranging from 650...


Read the Article


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

Try another library?
Sign out of this library

Other Topics