Enhanced magnetic irreversibility characteristics by expansion of blocking block for Sr2Ca2Cu3O8-δ high-Tc superconductor
Research output: Contribution to journal › Article › Scientific › peer-review
- Nagaoka University of Technology
- Toyohashi University of Technology
We demonstrate that the irreversibility field characteristics of high-Tc superconductors are not necessarily enhanced by decreasing the thickness of the non-superconducting blocking block between adjacent superconducting blocks. The experimental data are for the high-pressure-synthesized Sr2Ca2Cu3O8%δ (0(Sr)223; Tc = 105 K) phase and for its water-containing derivative phase (H2O)m/2Sr2Ca2Cu3O8%δ (H-m(Sr)223; Tc = 105 K), which spontaneously forms when the 0(Sr)223 phase is exposed to air at 80 °C. Our results clearly show that the insertion of water into the 0(Sr)223 phase expands the blocking block by 3.1A along the c-axis but improves the Jc and Hirr properties while keeping the high Tc intact.
|Journal||Japanese Journal of Applied Physics|
|Publication status||Published - 1 Aug 2017|
|MoE publication type||A1 Journal article-refereed|