Magnetoresistance and Irreversibility Fields of Bismuth-Based 1G Tape
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- 作者：W. M. Woch ; M. Chrobak ; M. Kowalik…
- 刊名：Journal of Superconductivity Incorporating Novel Magnetism
- 出版年：2016
- 出版时间：September 2016
- 年：2016
- 卷：29
- 期：9
- 页码：2333-2336
- 全文大小：584 KB
- 刊物类别：Physics and Astronomy
- 刊物主题：Physics
Superconductivity, Superfluidity and Quantum Fluids
Magnetism and Magnetic Materials
Condensed Matter
Characterization and Evaluation Materials - 出版者：Springer New York
- ISSN：1557-1947
- 卷排序：29
文摘
The magnetoresistance and irreversibility fields of commercial bismuth-based 1G tape were studied on the basis of the temperature dependencies of the magnetoresistance at the two relative orientations of magnetic field and superconductor plane. The critical temperatures of this tape are the following: Tc50 % = 110.3 K and Tc0 = 109.9 K, and the width of superconducting transition is ΔT = 0.5 K. The widths of the transition to the superconducting state versus applied magnetic fields were derived for both orientations. The experimental data were fitted using the formula ΔT = CHm + ΔT0. The irreversibility field values were obtained and successfully fitted as a function of temperature. At 77 K, they were found to amount to Hirr = 72.8 kOe and Hirr = 5.5 kOe for the parallel and perpendicular directions, respectively.Keywords1G superconducting tapeWidth of superconducting transitionIrreversibility fields