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arXiv · 0807.2530

High-Temperature Superconductivity in Eu0.5K0.5Fe2As2

H. S. Jeevan·Z. Hossain·Deepa Kasinathan·Helge Rosner·C. Geibel·P. Gegenwart
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Abstract

Subsequent to our recent report of SDW type transition at 190 K and antiferromagnetic order below 20 K in EuFe2As2, we have studied the effect of K-doping on the SDW transition at high temperature and AF order at low temperature. 50% K doping suppresses the SDW transition and in turn gives rise to high-temperature superconductivity below T_c = 32 K, as observed in the electrical resistivity, AC susceptibility as well as magnetization. A well defined anomaly in the specific heat provides additional evidence for bulk superconductivity.

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H. S. Jeevan, Z. Hossain, Deepa Kasinathan, Helge Rosner, C. Geibel, P. Gegenwart. 2008-08-06. High-Temperature Superconductivity in Eu0.5K0.5Fe2As2. https://doi.org/10.1103/physrevb.78.092406

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