ABSTRACT
We synthesized the new Fe-based superconductor single crystals. The obtained single crystal exhibited a sharp superconducting transition and the onset and zero-resistivity tempera-ture were estimated to be 33 and 31.8 K, respectively. A high upper critical field of 192 T was obtained. The anisotropy of superconductivity of was . Both the high upper critical field and comparably low anisotropy are advantageous for applications under a high magnetic field.
This work was partly supported by Grant-in-Aid for Scientific Research (KAKENHI).
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