Moisture-induced superconductivity in FeTe0.8S0.2

Abstract

Moisture-induced superconductivity was observed in FeTe0.8S0.2. With exposing the sample to the air, the zero resistivity temperature and the superconducting volume fraction were enhanced up to 7.2 K and 48.5 %, respectively, while the as-grown sample showed only filamentary superconductivity. We concluded that the causes of the evolution of superconductivity were water-related ions and/or molecules, because only the sample kept in water at room temperature for several days showed superconductivity. The speed of evolution of superconductivity was strongly enhanced by immersing the sample into the hot water.

15 pages, 7 figures, accepted for publication in Phys. Rev. B

References in corpus (10)

• Superconductivity at 36 K in beta-Fe1.01Se with the compression of the interlayer separation under pressure
• Superconductivity at 27 K in tetragonal FeSe under high pressure
• Superconductivity close to magnetic instability in Fe(Se1-xTex)0.82
• Tellurium substitution effect on superconductivity of the alpha-phase Iron Selenide
• Why Does Undoped FeSe Become A High Tc Superconductor Under Pressure?
• Substitution Effects on FeSe Superconductor
• Superconductivity in S-substituted FeTe
• FeTe as a candidate material for new iron-based superconductor
• Water-induced superconductivity in SrFe2As2
• Successive phase transitions under high pressure in FeTe0.92

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• Intergrain effects in the AC susceptibility of polycrystalline LaFeAsO_{0.94}F_{0.06}: comparison with cuprate superconductors
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