On the role of chalcogen vapor annealing in inducing bulk superconductivity in Fe${}_{1+y}$Te${}_{1-x}$Se${}_x$

Wenzhi Lin, P. Ganesh, Anthony Gianfrancesco +6

Recent investigations have shown that Fe${}_{1+y}$Te${}_{1-x}$Se${}_x$ can be made superconducting by annealing it in Se and O vapors. The current lore is that these chalcogen vapors i…