TITLE

Preparation of superconducting Y-Ba-Cu-O films by a reactive plasma evaporation method

AUTHOR(S)
Terashima, Kazuo; Eguchi, Keisuke; Yoshida, Toyonobu; Akashi, Kazuo
PUB. DATE
April 1988
SOURCE
Applied Physics Letters;4/11/1988, Vol. 52 Issue 15, p1274
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Y-Ba-Cu-O superconducting films were prepared by a reactive plasma evaporation method, in which mixed powders were coevaporated in a thermal radio-frequency Ar+O2 plasma and the ternary composition controlled high-temperature metallic vapors were codeposited onto a substrate. The deposition rate was much more than 10 μm/min, which is several orders of magnitude higher than those reported by the other methods previously. The structure of the prepared films was identified as an orthorhombic oxygen-deficient perovskite phase and some films showed the preferred orientation of (001). The as-deposited film without post-annealing showed a superconducting transition temperature Tcm (midpoint) of 94 K.
ACCESSION #
9826481

 

Related Articles

  • 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;...

  • Influence of working gas pressure on the properties of thin films of high-temperature superconductors obtained by magnetron sputtering. Vorob’ev, A. K.; Gaponov, S. V.; Gusev, S. A.; Drozdov, Yu. N.; Klyuenkov, E. B.; Luchin, V. I. // Technical Physics Letters;Feb98, Vol. 24 Issue 2, p159 

    The surface morphology, composition, microstructure, and electrical properties of thin films of YBa[sub 2]Cu[sub 3]O[sub 7-x] high-temperature superconductors, obtained by inverted magnetron sputtering, have been studied as a function of the pressure of the working gas mixture and results are...

  • Features of the microwave breakdown of a high-T[sub c] superconducting film at defects. Buznikov, N. A.; Pukhov, A. A. // Technical Physics Letters;Sep98, Vol. 24 Issue 9, p697 

    The influence of nonsuperconducting defects on the power density for microwave breakdown of a high-T[sub c] superconducting film is investigated theoretically. It is found that the scenario of the destruction of superconductivity depends substantially on the shape of the defect and on the ratio...

  • Superconducting Energy Gap Distribution in c-Axis Oriented MgB[sub 2] Thin Film from Point Contact Study. Naidyuk, Yu. G.; Yanson, I. K.; Tyutrina, L. V.; Bobrov, N. L.; Chubov, P. N.; Kang, W. N.; Kim, Hyeong-Jin; Choi, Eun-Mi; Lee, Sung-Ik // JETP Letters;3/10/2002, Vol. 75 Issue 5, p238 

    We have analyzed about a hundred voltage-dependent differential resistance dV/dI(V) curves of metallic point contacts between c-axis-oriented MgB[sub 2] thin film and Ag, which exhibit clear Andreev reflection features connected with the superconducting gap. About one half of the curves show the...

  • Structure of the mixed state induced in thin YBaCuO superconducting films by the field of a small ferromagnetic particle. Aladyshkin, A. Yu.; Vorob’ev, A. K.; Vysheslavtsev, P. P.; Klyuenkov, E. B.; Mel’nikov, A. S.; Nozdrin, Yu. N.; Tokman, I. D. // Journal of Experimental & Theoretical Physics;Nov99, Vol. 89 Issue 5, p940 

    The temperature dependence of the local energy barrier to formation of the mixed state in YBaCuO thin-film superconducting samples has been determined. The measurement technique is based on use of a small ferromagnetic particle as the magnetic field source. It is found that the energy barrier to...

  • Flash Evaporation as an Attempt for Preparation of YBCO Superconductor Thin Films. Ramadan, A.A.; Abdel-Hady, S.; Abdel-Ghany, S.; Soltan, S.E. // Egyptian Journal of Solids;2000, Vol. 23 Issue 1, p59 

    A home-made flash evaporation attachment was used to prepare YBCO superconductor in the form of thin film on Si wafer substrate. Structural study was achieved by XRD analysis and electric resistance was measured by linear four-probe method down to 77 K. The whole-pattern fitting of Rietveld...

  • Electrical Properties of YBa[sub 2]Cu[sub 3]O[sub 7 –][sub x] Films of Various Thicknesses. Razumov, S. V.; Tumarkin, A. V. // Technical Physics Letters;Feb2003, Vol. 29 Issue 2, p97 

    We have studied the electrical properties of high-T[sub c] superconductor YBa[sub 2]Cu[sub 3]O[sub 7-x] films obtained by the ion-plasma deposition technique on sapphire substrates. Dependences of the surface resistance and the critical current density on the film thickness are determined.

  • A detachable semiconductor bolometer for heat pulses. Shen, Y.; Boragno, C.; Buatier de Mongeot, F.; Valbusa, U. // Review of Scientific Instruments;Jul1992, Vol. 63 Issue 7, p3791 

    A semiconductor detachable bolometer using a superconducting thin film as coupling medium is described. The film acts as a low pass band filter for the phonons having a frequency below the superconductive gap. A comparison between different coupling media is reported.

  • Mixed state and critical current in narrow semiconducting films. Maksimova, G. M. // Physics of the Solid State;Oct98, Vol. 40 Issue 10, p1607 

    The mixed state of thin narrow superconducting films with an edge barrier placed in a transverse magnetic field is considered. The boundaries of the region for the existence of metastable mixed states with an assigned number of vortices N [H[sub min](N)≤H≤H[sub max](N)] are found....

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

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

Try another library?
Sign out of this library

Other Topics