Yoshikazu Mizuguchi

Superconductivity at 27K in tetragonal FeSe under high pressure

A huge enhancement of the superconducting transition temperature Tc was observed in a tetragonal FeSe superconductor under high pressure. The onset temperature was as high as 27K at 1.48GPa and the pressure coefficient showed an extremely high value of 9.1K∕GPa. The upper critical field Hc2 was estimated to be ∼72T at 1.48GPa. Because of the high Hc2, the FeSe system can be applied to superconducting wire rods.

Anion height dependence of Tc for the Fe-based superconductor

\ensuremath{\alpha}\text{-FeSe}

Review of Fe Chalcogenides as the Simplest Fe-Based Superconductor

with the PbO structure is a key member of the family of high-

Superconductivity in Novel BiS2-Based Layered Superconductor LaO1-xFxBiS2

{T}_{c}

Substitution Effects on FeSe Superconductor

iron pnictide and chalcogenide superconductors, as while it possesses the basic layered structural motif of edge-sharing distorted

Superconductivity in S-substituted FeTe

{\text{FeSe}}_{4}

Crystal structure of the new FeSe1−x superconductor

tetrahedra, it lacks interleaved ion spacers or charge-reservoir layers. We find that the application of hydrostatic pressure first rapidly increases

Nanoscale phase separation in the iron chalcogenide superconductor K 0 . 8 Fe 1 . 6 Se 2 as seen via scanning nanofocused x-ray diffraction

{T}_{c}

Precise Pressure Dependence of the Superconducting Transition Temperature of FeSe: Resistivity and 77Se-NMR Study

which attains a broad maximum of 37 K at