Physics and chemistry review of layered chalcogenide superconductors
  Structural and physical properties of layered chalcogenide superconductors are summarized. In particular, we review the remarkable properties of the Fe-chalcogenide superconductors, FeSe and FeTe-based materials. Furthermore, we introduce the recently-discovered new BiS2-based layered superconductors and discuss its prospects. 
Keita Deguchi, Yoshihiko Takano, Yoshikazu Mizuguchi
cond-mat.supr-con