Superconducting and thermoelectric properties of new layered Superconductor Bi4O4S3

Abstract

Polycrystalline sample of the new layered superconductor Bi4O4S3 is successfully synthesized by solid-state reaction method by using Bi, S and Bi2O3 powders with one step reaction. The superconducting transition temperature (Tconset=4.5 K), the zero resistance transition temperature (Tc0=4.07 K) and the diamagnetic transition temperature (4.02 K at H=10 Oe) were confirmed by electrical transport and magnetic measurements. Also, our results indicate a typical type II-superconductor behavior. In addition, a large thermoelectric effect was observed with a dimensionless thermoelectric figure of merit (ZT) of about 0.03 at 300K, indicating Bi4O4S3 can be a potential thermoelectric material.

arXiv comment10 pages, 4 figures

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• Physics and chemistry review of layered chalcogenide superconductors
• Superconductivity at 5K in NdO0.5F0.5BiS2
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• RPA Analysis of a Two-orbital Model for the BiS2-based Superconductors
• Pairing Symmetry in Layered BiS${}_2$ Compounds Driven by Electron-Electron Correlation
• Probing the superconducting pairing symmetry from spin excitations in BiS${}_2$ based superconductors
• Bulk superconductivity in Bi4O4S3 revealed by specific heat measurement
• Superconducting and magneto-transport properties of BiS2 based superconductor PrO1-xFxBiS2 (x = 0 to 0.9)
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• Superconductivity in Semimetallic Bi3O2S3
• Effects of stoichiometric doping in superconducting Bi-O-S compounds
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