TITLE

Effect of noble metal buffer layers on superconducting YBa2Cu3O7 thin films

AUTHOR(S)
Chien, C. L.; Xiao, Gang; Streitz, F. H.; Gavrin, A.; Cieplak, M. Z.
PUB. DATE
December 1987
SOURCE
Applied Physics Letters;12/21/1987, Vol. 51 Issue 25, p2155
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Superconducting YBa2Cu3O7 thin films have been prepared by using a magnetron sputtering system in the single-source mode. Samples deposited on [100] single-crystal MgO with and without a Au buffer layer all show high transition temperatures (82–87 K). The use of a Au buffer layer significantly improves the superconducting properties, particularly the Meissner effect and critical current density (3.3×106 A/cm2 at T=2 K and 3.5×104 A/cm2 at T=77 K). The Au films remain metallic after high-temperature annealing in an oxygen atmosphere. We propose to use Au buffer layers as current shunts to protect superconducting films and devices.
ACCESSION #
9825312

 

Related Articles

  • Superconductivity in the Bi-Sr-Ca-Cu-O compounds with noble metal additions. Jin, S.; Sherwood, R. C.; Tiefel, T. H.; Kammlott, G. W.; Fastnacht, R. A.; Davis, M. E.; Zahurak, S. M. // Applied Physics Letters;5/9/1988, Vol. 52 Issue 19, p1628 

    The Bi-Sr-Ca-Cu-O superconductors have been doped with various noble metals and their superconducting properties have been investigated. The resistivity and magnetic susceptibility measurements on sintered Bi4Sr3Ca2Cu4O16+x containing 20% by weight of Au, Ag, or Pt-group metals indicate that Au...

  • In situ measurement of stress in Co/Cu, Co/Pd, and Co/Au compositionally modulated multilayer films. Awano, H.; Suzuki, Y.; Katayama, T.; Itoh, A. // Journal of Applied Physics;11/1/1990, Vol. 68 Issue 9, p4569 

    Investigates the temporal changes of sign and magnitude of the intrinsic stress during ultra-high vacuum deposition of cobalt (Co)/copper, Co/palladium and Co/gold compositionally modulated multilayer films. Detection of intrinsic stress corresponding to monatomic layers; Distance between...

  • Two-dimensional crystal structure of single Langmuir–Blodgett films deposited on noble metal single crystals studied with LEED. Vogel, Viola; Wöll, Christof // Journal of Chemical Physics;5/1/1986, Vol. 84 Issue 9, p5200 

    Single fatty acid monolayers were deposited onto noble metal single crystals (Cu, Ag, Au).Low-energy electron diffraction (LEED) investigations of these 2D monolayer crystals reveal a structural quality comparable to that of single crystal metal surfaces. The monolayer crystal is aligned with...

  • Quantum well states and magnetic coupling between noble metals and ferromagnets (invited). Ortega, J. E.; Himpsel, F. J.; Mankey, G. J.; Willis, R. F. // Journal of Applied Physics;5/15/1993, Vol. 73 Issue 10, p5771 

    Studies quantum well states and magnetic coupling between noble metals and ferromagnets. Evidence for discrete thin-film states; Wave function of quantum well states; Spin polarization of quantum well states.

  • SYNTHESIS, CHARACTERIZATION AND PHOTOVOLTAIC APPLICATION OF SILVER DOPED CdS/PVA NANOCOMPOSITE THIN FILMS. Saikia, D.; Saikia, P. K.; Gogoi, P. K.; Saikia, P. // Digest Journal of Nanomaterials & Biostructures (DJNB);Apr-Jun2011, Vol. 6 Issue 2, p589 

    CdS quantum dot(QD) embedded in PVA matrix were prepared in thin film form on chemically cleaned glass substrates by dip coating technique followed by direct heat treatment of the substrate. The synthesis method reported in this study is free from ammonia. Silver was doped into CdS/PVA thin film...

  • Superconducting contacts for use in niobium thin film applications. Garfield, James R.B. // Review of Scientific Instruments;Apr97, Vol. 68 Issue 4, p1906 

    Describe a simple method for forming superconducting contacts to niobium thin films as used for current perpendicular to the plane measurements of the resistance of magnetic multilayers using an indium-Roses alloy. Measurement of the superconducting transition temperature; Cooling of samples;...

  • Epitaxy of HgBa[sub 2]CaCu[sub 2]O[sub 6] superconducting films on biaxially textured Ni substrates. Xie, Y. Y.; Xie, Y.Y.; Aytug, T.; Wu, J. Z.; Wu, J.Z.; Verebelyi, D. T.; Verebelyi, D.T.; Paranthaman, M.; Goyal, A.; Christen, D. K.; Christen, D.K. // Applied Physics Letters;12/18/2000, Vol. 77 Issue 25 

    Superconducting HgBa[sub 2]CaCu[sub 2]O[sub 6] (Hg-1212) films have been coated on biaxially textured Ni substrates buffered with CeO[sub 2]/YSZ/CeO[sub 2] trilayers. A two-step cation-exchange process was employed for Hg-1212 coatings, whereby epitaxial Tl[sub 2]Ba[sub 2]CaCu[sub 2]O[sub 8]...

  • Thin-film dc SQUID consisting of quasiparticle-injected superconducting weak links. Kojima, K.; Nara, S.; Hamanaka, K. // Applied Physics Letters;8/1/1985, Vol. 47 Issue 3, p325 

    A thin-film dc superconducting quantum interference device (SQUID) consisting of quasiparticle-injected superconducting weak links was fabricated and successfully operated. This SQUID was made on a silicon substrate and it consists of a ∼ 100-nm-thick lead alloy with two injector junctions....

  • Versatile new metalorganic process for preparing superconducting thin films. Gross, M. E.; Hong, M.; Liou, S. H.; Gallagher, P. K.; Kwo, J. // Applied Physics Letters;1/11/1988, Vol. 52 Issue 2, p160 

    A new technique for producing thin films of the high-temperature perovskite superconductors, LnBa2Cu3O7-x, where Ln represents a rare-earth element, using spin-on metalorganic precursors is described. Pyrolysis of the spin-coated films, consisting of mixed metal (2-ethyl hexanoates), leads to...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

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

Try another library?
Sign out of this library

Other Topics