We have synthesized a new layered BiS2-based compound SrFBiS2. This compound has similar structure to BiS2. It is built up by stacking up SrF layers and NaCl-type BiS2 layers alternatively along the c axis. Electric transport measurement indicates that SrFBiS2 is a semiconductor. Thermal transport measurement shows that SrFBiS2 has a small thermal conductivity and large Seebeck coefficient. First principle calculations are in agreement with experimental results and show that SrFBiS2 is very similar to LaOBiS2 which becomes superconductor with F doping. Therefore, SrFBiS2 may be a parent compound of new superconductors.
Cite
@article{arxiv.1208.3189,
title = {New layered fluorosulfide SrFBiS2},
author = {Hechang Lei and Kefeng Wang and Milinda Abeykoon and Emil S. Bozin and C. Petrovic},
journal= {arXiv preprint arXiv:1208.3189},
year = {2013}
}