Magnetism, Superconductivity and Stoichiometry in Single Crystals of Fe1+y(Te1-xSx)z

Details Magnetism, Superconductivity and Stoichiometry in Single Crystals of Fe1+y(Te1-xSx)z Magnetism, Superconductivity and Stoichiometry in Single Crystals of Fe1+y(Te1-xSx)z

2009-08-20

arxiv.org/abs/0908.3011v1

Physics

Condensed Matter

Superconductivity

6 pages, 5 figures

Scientific paper

We report synthesis of high quality Fe1+y(Te1-xSx)z single crystals and a comprehensive study of structural, magnetic and transport properties. There is high sensitivity to material stoichiometry which includes vacancies on the Te(S) site. Our results reveal competition and coexistence of magnetic order and percolative superconductivity for x >= 0.03, while zero resistivity is acheived for x >= 0.1.

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