Iron-platinum-arsenide superconductors Ca10(PtnAs8)(Fe2-xPtxAs2)5
  An overview of the crystal structures and physical properties of the recently discovered iron-platinum-arsenide superconductors, Ca10(PtnAs8)(Fe2-xPtxAs2)5 (n = 3 and 4), which have a superconducting transition temperature up to 38 K, is provided. The crystal structure consists of superconducting Fe2As2 layers alternating with platinum-arsenic layers, PtnAs8. The upper critical field Hc2, hydrostatic pressure dependence of superconducting transition temperature Tc, and normal-state magnetic susceptibility are reported. 
Minoru Nohara, Satomi Kakiya, Kazutaka Kudo, Yoshihiro Oshiro, Shingo   Araki, Tatsuo C. Kobayashi, Kenta Oku, Eiji Nishibor...
cond-mat.supr-con