Suppression of phase separation and giant enhancement of superconducting transition temperature in FeSe${}_{1-x}$Te${}_x$ thin films

Yoshinori Imai, Yuichi Sawada, Fuyuki Nabeshima +1

We demonstrate the successful fabrication on CaF${}_2$ substrates of FeSe${}_{1-x}$Te${}_x$ films with $0\le x\le 1$, including the region of $0.1\le x\le 0.4$, which is well known…