IIDA , Kazumasa

We report on the growth of epitaxial Fe1+δSe0.5Te0.5thin films on 0°, 5°, 10°, 15° and 20° vicinal cut CaF2single crystals by pulsed laser deposition. In situ electron and ex situ x-ray diffraction studies reveal a tilted growth of the Fe1+δSe0.5Te0.5films, whereby under optimized deposition conditions the c-axis alignment coincides with the...

Revealing the universal behaviors of iron-based superconductors (FBS) is important to elucidate the microscopic theory of superconductivity. In this work, we investigate the effect of in-plane strain on the slope of the upper critical field H c2 at the superconducting transition temperature T c (i.e. -dH c2/dT) for FeSe0.7Te0.3 thin films. The...