Superconducting thallium oxide films by the electrodeposition method
| Autor: | Zhifeng Ren, J.H. Wang, W. Li, Darren Verebelyi, David K. Christen, Mariappan Parans Paranthaman, R. D. Blaugher, Raghu N. Bhattacharya |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Superconductivity
Materials science Superconducting wire Analytical chemistry Energy Engineering and Power Technology engineering.material Condensed Matter Physics Microstructure Electronic Optical and Magnetic Materials Magnetic field Full width at half maximum Zero field engineering Texture (crystalline) Electrical and Electronic Engineering Thallium oxide |
| Zdroj: | Physica C: Superconductivity. 304:55-65 |
| ISSN: | 0921-4534 |
| DOI: | 10.1016/s0921-4534(98)00277-9 |
| Popis: | A low cost electrodeposition method is tested for the fabricating high-temperature superconducting wire or tape. Recent studies on the development of biaxially textured electrodeposited (ED) films on Ag-coated, single-crystal substrates are reported. Pole-figure measurements of electrodeposited (Tl)–Ba–Ca–Cu–O and (Tl, Bi)–(Sr, Ba)–Ca–Cu–Ag–O films on 300 A Ag/LaAlO3, with thickness between 1 and 5 μm, clearly show strong biaxial texturing. The omega scan and phi scan of (TlBi)0.9Sr1.6Ba0.4Ca2Cu3Ag0.2Ox indicate the full width half maximum (FWHM) of only 0.9° and 1.2°, respectively, which indicate a very high-quality film prepared by electrodeposition process. Transport measurements for the ED films show values of 3×105 A/cm2 at 77 K in zero field. Single-layer thallium-oxide films, with Pb, Bi, and Sr substitution, offer the potential for operation at 77 K in practical magnetic fields of 3–5 T. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect