Physics – Condensed Matter – Superconductivity
Scientific paper
2011-09-09
Physics
Condensed Matter
Superconductivity
3 pages, 5 figures
Scientific paper
High-quality FeSe tapes have been prepared by using a diffusion method. By adjusting the reaction temperature and the thickness systematically, a transport critical current density as high as 600 A/cm2 at 4.2 K under self field is achieved. Magneto-optical images indicate considerable distribution of Tc and weak-link features in the FeSe tape. This study gives some insight into how to improve the quality and performance of FeSe tapes and other superconducting tapes prepared through diffusion method further.
Ding Qing-Ping
Mohan Shyam
Nakajima Yasuhi
Taen Toshihiro
Tamegai Tsuyoshi
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