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paper

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.