Inducement of superconductivity in Fe(Te,S) by sulfuric acid treatment
arXiv:1204.4035 · doi:10.1143/JPSJ.81.085005
Abstract
Superconductivity of Fe0.95Te0.85S0.15 was induced and enhanced by immersing the as-grown (non-superconducting) sample into sulfuric acid. Dissolved Fe was detected in the sulfuric acid treatment, indicating that excess Fe was removed from the Fe0.95Te0.85S0.15 sample.