Superconductivity up to 29 K in SrFe2As2 and BaFe2As2 at high pressures
  We report the discovery of superconductivity at high pressure in SrFe2As2 and BaFe2As2. The superconducting transition temperatures are up to 27 K in SrFe2As2 and 29 K in BaFe2As2, making these the highest pressure-induced superconducting materials discovered thus far. 
Patricia L. Alireza, Y. T. Chris Ko, Jack Gillett, Chiara M. Petrone,   Jacqueline M. Cole, Suchitra E. Sebastian, and Gilbe...