Superconductivity in oxygen-annealed FeTe1-xSx single crystal

Details Superconductivity in oxygen-annealed FeTe1-xSx single crystal Superconductivity in oxygen-annealed FeTe1-xSx single crystal

2010-09-17

arxiv.org/abs/1009.3315v1

J. Appl. Phys. 109, 013914 (2011)

Physics

Condensed Matter

Superconductivity

14 pages, 7 figures

Scientific paper

10.1063/1.3531554

We investigated the S-doping-driven phase transition from antiferromagnetic to superconducting in FeTe1-xSx single crystals. The partial substitution of Te by S suppresses antiferromagnetism in Fe-square lattice. Superconductivity is induced by oxygen annealing for only FeTe1-xSx in which the long-range magnetic ordering is suppressed. To realize superconductivity in FeTe1-xSx, both S concentration enough to suppress antiferromagnetism and oxygen annealing are required. Anisotropy of superconductivity in oxygen-annealed FeTe0.886S0.114 was estimated to be 1.17.

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