Title :
Application of selective leaching in fabrication of thin film YBCO devices
Author :
James, P.M. ; O´Callaghan, J.M. ; Ellis, A.B.
Author_Institution :
Wisconsin Univ., Madison, WI, USA
fDate :
3/1/1993 12:00:00 AM
Abstract :
Ethylenediamine solutions have been shown to turn bulk YBCO into insulating materials. The effect of these solutions on thin YBCO films is studied. In both unpatterned and patterned films, a smooth decrease in critical currents, a transition to normal state, and a subsequent gradual increase in resistance are observed as a function of exposure time to the solution. It is noted that these characteristics might make this process desirable for weak-link and on-film resistor fabrication.<>
Keywords :
barium compounds; critical currents; dissolving; high-temperature superconductors; superconducting junction devices; superconducting thin films; yttrium compounds; HTSC; YBaCuO thin film devices; critical currents; ethylenediamine solutions; exposure time; fabrication; on-film resistor; patterned films; selective leaching; transition to normal state; unpatterned films; weak-link; Critical current; Etching; Fabrication; Insulation; Leaching; Resistors; Superconducting films; Superconducting materials; Thin film devices; Yttrium barium copper oxide;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
