Effect of Se doping in recently discovered layered Bi4O4S3 superconductor

@article{Jha2014EffectOS,
  title={Effect of Se doping in recently discovered layered Bi4O4S3 superconductor},
  author={Rajveer Jha and V. P. S. Awana},
  journal={Physica C-superconductivity and Its Applications},
  year={2014},
  volume={498},
  pages={45-49}
}
  • R. Jha, V. Awana
  • Published 1 November 2013
  • Materials Science, Physics
  • Physica C-superconductivity and Its Applications
Abstract We report suppression of superconductivity in Bi 4 O 4 S 3 compound by Se doping at S site. Bulk polycrystalline samples are synthesized by solid state reaction route. The Rietveld refined of XRD data of all the studied samples show that the same are crystallized in tetragonal I 4/ mmm space group with slightly increased c lattice constant with the Se doping. Superconductivity is observed at below 4.5 K in both dc magnetization and resistivity with temperature measurements for all Bi 4… Expand
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References

SHOWING 1-10 OF 19 REFERENCES
Suppression of superconductivity in layered Bi4O4S3 by Ag doping
AbstractWe report X-ray diffraction, magnetization and transport measurements for polycrystalline samples of the new layered superconductor Bi4−xAgxO4S3 (0 ≤ x ≤ 0.2). The superconducting transitionExpand
Appearance and disappearance of superconductivity in SmFe1−xNixAsO (x = 0.0–1.0)
Abstract Bulk polycrystalline Ni-substituted SmFe 1− x Ni x AsO ( x  = 0.0–1.0) samples are synthesized by solid state reaction route in an evacuated sealed quartz tube. The cell volume decreasesExpand
Bulk superconductivity in bismuth oxysulfide Bi4O4S3.
TLDR
The magnetization and electrical transport measurements substantiate the appearance of bulk superconductivity in as-synthesized Bi(4)O( 4)S(3) and exclude the possibility of impurity-driven super conductivity in the newly discovered superconductor Bi(2)S (3). Expand
Synthesis and Superconductivity of New BiS2 Based Superconductor PrO0.5F0.5BiS2
We report synthesis and superconductivity at 3.7 K in PrO0.5F0.5BiS2. The newly discovered material belongs to the layered sulfide based REO0.5F0.5BiS2 compounds having a ZrCuSiAs-type structure. TheExpand
Effects of stoichiometric doping in superconducting Bi-O-S compounds.
TLDR
It is demonstrated that the S2 layers dope the bismuth-sulphur bands and this causes metallisation, and it is shown that spin-orbit coupling does not have any significant effect on the states close to the Fermi level at the energy scale considered. Expand
Novel BiS2-based layered superconductor Bi4O4S3
Exotic superconductivity has often been discovered in materials with a layered (two-dimensional) crystal structure. The low dimensionality can affect the electronic structure and can realize highExpand
Superconductivity in Vacuum Annealed Bi6O8S5
Bi6O8S5, the parent compound of the Bi4O4S3 superconductor, is found to display typical insulating behavior via transport measurement. Here we report that the samples annealed at 200 and 250 °C inExpand
Superconductivity in Bismuth Oxysulfide Bi4O4S3
Bismuth oxysulfide Bi4O4S3, which has recently been claimed to be an exotic superconductor (Tc = 4.5 K), was investigated by magnetic susceptibility and electrical resistivity measurements as well asExpand
Superconductivity in novel BiS2-based layered superconductor LaO1-xFxBiS2
Layered superconductors have provided some interesting fields in condensed matter physics owing to the low dimensionality of their electronic states. For example, the high-Tc (high transitionExpand
Stacking variants and superconductivity in the Bi-O-S system.
TLDR
The identification and basic properties of two new ternary Bi-O-S compounds, Bi2OS2 and Bi3O2S3 are reported; the former is non-superconducting; the latter likely explains the superconductivity at T(c) = 4.5 K previously reported in "Bi4O4S3". Expand
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