Electronic structure and superconductivity of BiS2-based compounds   LaO1-xFxBiS2
  Using the density-functional perturbation theory with structural optimization, we investigate the electronic structure, phonon spectra, and superconductivity of BiS2-based layered compounds LaO1-xFxBiS2. For LaO0.5F0.5BiS2, the calculated electron-phonon coupling constant is equal to lambda = 0.8, and obtained Tc = 9.1 K is very close to its experimental value, indicating that it is a conventional electron-phonon superconductor. 
B. Li, Z. W. Xing and G. Q. Huang
cond-mat.supr-con cond-mat.mtrl-sci