Superconductivity at Tc ∼14 K in single-crystalline FeTe0.61 Se0.39

T. Taen, Y. Tsuchiya, Y. Nakajima, T. Tamegai

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167 Citations (Scopus)


Single-crystalline FeTe0.61 Se0.39 with a sharp superconducting transition at Tc ∼14 K is synthesized via slow furnace cooling followed by low-temperature annealing. The effect of annealing on the chemical and superconducting inhomogeneities is carefully characterized. We also report resistivity, magnetization, and magneto-optical images of this crystal. Based on the Bean model, critical current density is estimated to exceed 1× 105 A/ cm2 below 5 K under zero field. Weak fish-tail effect is identified at lower temperatures.

Original languageEnglish
Article number092502
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number9
Publication statusPublished - 2009 Sept 8
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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