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Pressure study of the new iron-based superconductor K0.8Fe2Se2

arXiv:1101.0896 · doi:10.1143/JPSJ.80.075002

Abstract

We investigated pressure effects on transition temperature (Tc) of the new iron-based superconductor K0.8Fe2Se2 using a BeCu/NiCrAl hybrid-type clamped piston-cylinder cell. The Tc(onset) was 33K at 0.85 GPa. With increasing pressure, Tc(onset) gradually increased and reached 36.6 K at 2.03 GPa.

8 pages, 3 figures