Bi4O4S3 was the first superconductor discovered in the BiS2 family of novel superconductors. The subfamily of Bi-O-S systems now expanded andwas probed both theoretically and experimentally. Here we review the experimentalwork done on the Bi-O-S compounds, and compare it with theoretical results obtained using ab-initio methods. In particular we calculate the charge carrier density using an ab-initio calculated density of states, and find a really close agreement with experimental data.
Financed by the National Centre for Research and Development under grant No. SP/I/1/77065/10 by the strategic scientific research and experimental development program:
SYNAT - “Interdisciplinary System for Interactive Scientific and Scientific-Technical Information”.