Pressure-induced superconductivity in Iron pnictide compound SrFe2As2

K. Igawa; H. Okada; H. Takahashi; S. Matsuishi; Y. Kamihara; M. Hirano; H. Hosono; K. Matsubayashi; Y. Uwatoko

doi:10.1143/JPSJ.78.025001

Pressure-induced superconductivity in Iron pnictide compound SrFe2As2

Superconductivity 2009-02-10 v1

Authors: K. Igawa , H. Okada , H. Takahashi , S. Matsuishi , Y. Kamihara , M. Hirano , H. Hosono , K. Matsubayashi , Y. Uwatoko

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Abstract

Electrical resistivity under high pressure have been measured on nominally pure SrFe2As2 up to 14 GPa. The resistivity drop appeared with increasing pressure, and we clearly observed zero resistivity. The maximum of superconducting transition temperature (Tc) is 38 K. The value is corresponding to the one of optimally doping AFe2As2 (A=Sr, Ba) system with K+ ions at the A2+ site.

Keywords

single crystal superconductivity high-temperature superconductivity superconductivity

Cite

@article{arxiv.0810.1377,
  title  = {Pressure-induced superconductivity in Iron pnictide compound SrFe2As2},
  author = {K. Igawa and H. Okada and H. Takahashi and S. Matsuishi and Y. Kamihara and M. Hirano and H. Hosono and K. Matsubayashi and Y. Uwatoko},
  journal= {arXiv preprint arXiv:0810.1377},
  year   = {2009}
}

Comments

10 pages, 2 figures

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