We present transport critical current (Jct) data for polycrystalline films in the TI-Ca-Ba-Cu-O system. Comparable results are obtained for unoriented films of TI2CaBa2Cu2Ox and unoriented and epitaxial films of TI2Ca2Ba2Cu3Ox: namely, Jcts over 105 A cm -2 (109 A m -2) at 77 K with weak sensitivity
Morphology control and high critical currents in superconducting thin films in the Tl-Ca-Ba-Cu-O system
โ Scribed by D.S. Ginley; J.F. Kwak; E.L. Venturini; B. Morosin; R.J. Baughman
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 705 KB
- Volume
- 160
- Category
- Article
- ISSN
- 0921-4534
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๐ SIMILAR VOLUMES
We report direct observation of the flux pinning behavior of a TltCa2Ba2Cu30, highly oriented thin film, a randomly oriented polycrystalline thin film and a Tl~CaBa,eu20, single crystal. From the temperature dependence of the critical current densities Jc at zero field, activation energies Uo are es
We found a series of superconducting phases in the T1-Ba-Ca-Cu-O system and determined the crystal structures of these superconducting phases by means of the X-ray powder diffraction method. All of these superconducting phases belong to the tetragonal symmetry. They have the same lattice constant a