Superconductivity at 55 K in Iron-Based F-Doped Layered Quaternary Compound Sm[O1-xFx] FeAs

@article{ZhiAn2008SuperconductivityA5,
  title={Superconductivity at 55 K in Iron-Based F-Doped Layered Quaternary Compound Sm[O1-xFx] FeAs},
  author={Ren Zhi-An and Lu Wei and Yang Jie and Yi Wei and Shen Xiao-li and Zheng-cai and Che Guang-can and Dong Xiao-li and Sun Li-ling and Zhou Fang and Zhao Zhong-xian},
  journal={Chinese Physics Letters},
  year={2008},
  volume={25},
  pages={2215-2216}
}
We report the superconductivity in iron-based oxyarsenide Sm[O1-xFx]FeAs, with the onset resistivity transition temperature at 55.0K and Meissner transition at 54.6 K. This compound has the same crystal structure as LaOFeAs with shrunk crystal lattices, and becomes the superconductor with the highest critical temperature among all materials besides copper oxides up to now. 
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References

SHOWING 1-5 OF 5 REFERENCES
Iron-based layered superconductor La[O(1-x)F(x)]FeAs (x = 0.05-0.12) with T(c) = 26 K.
TLDR
It is reported that a layered iron-based compound LaOFeAs undergoes superconducting transition under doping with F- ions at the O2- site and exhibits a trapezoid shape dependence on the F- content. Expand
Iron-based layered superconductor: LaOFeP.
TLDR
Magnetic and electrical resistivity measurements verify the occurrence of the superconducting transition at approximately 4 K in an iron-based layered oxy-pnictide LaOFeP. Expand
Nickel-based oxyphosphide superconductor with a layered crystal structure, LaNiOP.
TLDR
The volume fraction of the superconducting phase estimated from the diamagnetic susceptibility reached approximately 40 vol % at 1.8 K, substantiating that LaNiOP is a bulk superconductor. Expand
Synthesis and crystal structure of new rare-earth copper oxyselenides: RCuSeO (R=La, Sm, Gd and Y)
A new series of copper oxyselenides RCuSeO (R=La, Sm, Gd and Y) have been prepared and studied by X-ray powder diffraction. The Sm-containing phase was determined to have a tetragonal crystalExpand
The rate earth transition metal phosphide oxides LnFePO, LnRuPO and LnCoPO with ZrCuSiAs type structure
Abstract The compounds LnFePO (Ln = La−Nd, Sm, Gd), LnRuPO (Ln = La−Nd, Sm, Gd) and (Ln = La−Nd, Sm) crystallize with the tetragonal) ZrCuSiAs type structure (P4/nmm, Z = 2), which was refined fromExpand