Pressure-induced superconductivity in Eu${}_{0.5}$Ca${}_{0.5}$Fe${}_2$As${}_2$ : FeAs-based superconductivity hidden by antiferromagnetism of Eu sublattice

Akihiro Mitsuda, Tomohiro Matoba, Hirofumi Wada +2

To clarify superconductivity in EuFe2As2 hidden by antiferromagnetism of Eu2+, we investigated a Ca-substituted sample, Eu0.5Ca0.5Fe2As2, under high pressure. For ambient pressure,…