W.-Y. Lee, J.R. Salem, et al.
Thin Solid Films
We have prepared superconducting Tl-Ca-Ba-Cu-O thin films on a variety of substrates with transition temperatures as high as ≅120 K, confirmed by sharp onsets of substantial Meissner and shielding signals at the same temperatures. The properties of the films are found to depend sensitively on the post-annealing conditions. Highly textured c-axis-oriented films comprised mostly of Tl2Ca1Ba2Cu2Ox, Tl1Ca2Ba2Cu3Ox, and Tl2Ca2Ba2Cu3Ox were synthesized by varying the annealing procedure with corresponding maximum superconducting transition temperatures of ≃100, 110, and 120 K, respectively.
W.-Y. Lee, J.R. Salem, et al.
Thin Solid Films
M. Krantz, H. Rosen, et al.
Physical Review B
W.-Y. Lee, F.O. Sequeda, et al.
Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
R.D. Miller, K. Betterton, et al.
SPIE Optics Quebec 1993