Title :
Characterization of thin YBaCuO films grown by coevaporation
Author :
Broussard, P.R. ; Claassen, J.H. ; Wolf, S.A.
Author_Institution :
US Naval Res. Lab., Washington, DC, USA
fDate :
3/1/1989 12:00:00 AM
Abstract :
Thin films of the Y1Ba2Cu3Ox superconductor have been grown by coevaporation and postannealing in oxygen on substrates of (100) SrTiO3, (100) MgO, and (100) yttria-stabilized zirconia. Films grown on SrTiO3 show evidence of both a- and c-axis growth normal to the substrate and strong in-plane order. Films on MgO show c-axis growth without any in-plane order, indicative of fiber texture. Transition temperatures of the films on MgO are depressed compared to those on SrTiO3, but by using higher postanneal temperatures it is possible to improve the superconducting behavior of MgO samples
Keywords :
annealing; barium compounds; crystal atomic structure of inorganic compounds; high-temperature superconductors; superconducting thin films; superconducting transition temperature; vapour deposited coatings; yttrium compounds; MgO; SrTiO3; Y1Ba2Cu3Ox superconductor; Y2O3-ZrO2; a-axis growth; c-axis growth; coevaporation growth; fiber texture; high temperature superconductors; in-plane order; postannealing; thin YBaCuO films; transition temperature; Alpha particles; Annealing; Backscatter; Chemical elements; Electron beams; Optical reflection; Substrates; Superconducting films; Superconducting transition temperature; Yttrium barium copper oxide;
Journal_Title :
Magnetics, IEEE Transactions on
