Title :
High Tc superconducting thin films prepared by flash evaporation
Author :
Hato, Tsunehiro ; Takai, Yoshiaki ; Hayakawa, Hisao
Author_Institution :
Dept. of Electron, Nagoya Univ., Japan
fDate :
3/1/1989 12:00:00 AM
Abstract :
Superconducting thin films of Y-Ba-Cu-O and Bi-Ca-Sr-Cu-O were prepared by the flash evaporation technique. The flash evaporation method evaporates multi-elements instantly with different evaporation temperatures. These films had critical temperatures Tc (zero resistance) of 78 K (unannealed Y-Ba-Cu-O) and 73 K (annealed Bi-Ca-Sr-Cu-O). The thicknesses of these films were from 200 to 600 nm
Keywords :
barium compounds; bismuth compounds; calcium compounds; high-temperature superconductors; strontium compounds; superconducting thin films; superconducting transition temperature; vapour deposited coatings; yttrium compounds; 73 K; 78 K; BiCaSrCuO; YBaCuO; critical temperatures; flash evaporation technique; high temperature superconductors; superconducting thin films; Annealing; Dispersion; Electrical resistance measurement; Fluorescence; Powders; Spectroscopy; Substrates; Superconducting thin films; Temperature dependence; Tungsten;
Journal_Title :
Magnetics, IEEE Transactions on
