Transport properties of the new Fe-based superconductor KxFe2Se2 (Tc = 33 K)

Details Transport properties of the new Fe-based superconductor KxFe2Se2 (Tc = 33 K) Transport properties of the new Fe-based superconductor KxFe2Se2 (Tc = 33 K)

2010-12-22

arxiv.org/abs/1012.4950v1

Appl. Phys. Lett. 98, 042511 (2011)

Physics

Condensed Matter

Superconductivity

9 pages, 4 figures

Scientific paper

10.1063/1.3549702

We synthesized the new Fe-based superconductor K0.8Fe2Se2 single crystals. The obtained single crystal exhibited a sharp superconducting transition, and the onset and zero-resistivity temperature was estimated to be 33 and 31.8 K, respectively. A high upper critical field of 192 T was obtained. Anisotropy of superconductivity of K0.8Fe2Se2 was ~3.6. Both the high upper critical field and comparably low anisotropy are advantageous for the application under high magnetic field.

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