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New layered fluorosulfide SrFBiS2

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arxiv 1208.3189 v2 pith:7IWC3AV4 submitted 2012-08-15 cond-mat.supr-con cond-mat.mtrl-sci

New layered fluorosulfide SrFBiS2

Hechang Lei , Kefeng Wang , Milinda Abeykoon , Emil S. Bozin , C. Petrovic This is my paper
classification cond-mat.supr-con cond-mat.mtrl-sci
keywords srfbis2compoundbis2layeredlayersmeasurementsimilarthermal
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We have synthesized a new layered BiS$_{2}$-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.

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