Effect of Se doping in recently discovered layered Bi4O4S3 superconductor

  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},
  • 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
Element Substitution Effect on Superconductivity in BiS2-Based NdO1−xFxBiS2
Recently, new layered superconductors having a BiS2-type conduction layer have been discovered. NdO1−xFxBiS2 is a typical BiS2-based superconductor with a maximum Tc of 5.4 K. In this study, theExpand
Structure and Properties of Ca-doped Bismuth Oxysulfide Superconductor
Bismuth oxysulfide samples of composition Bi4−xCaxO4S3(0 <x <1) were synthesized by solid-state reaction method. The samples with x = 0 and 0.25 show superconducting transition with Tc (zero) 3.3 andExpand
Effects of stoichiometric doping in superconducting Bi-O-S compounds.
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
Emerging Superconductivity and Topological States in Bismuth Chalcogenides
In this chapter, we review the recent experimental work in emerging superconductors, i.e., bismuth chalcogenides, including the newly discovered BiS(e) 2 -based layered superconductors and someExpand
Anomalous Impact of Hydrostatic Pressure on Superconductivity of Polycrystalline LaO0.5F0.5BiSe2
We report bulk superconductivity at 2.5 K in LaO0.5F0.5BiSe2 compound through the DC magnetic susceptibility and electrical resistivity measurements. The synthesized LaO0.5F0.5BiSe2 compound isExpand
Coexistence of superconductivity and ferromagnetism in Sr0.5Ce0.5FBiS2-xSex (x = 0.5 and 1.0), a non-U material with Tc < TFM
A novel feature of these materials is that they exhibit a dual and quite unusual hysteresis loop corresponding to both the ferromagnetism and the coexisting bulk superconductivity. Expand
Effect of Hydrostatic Pressure on Eu3−xSrxBi2S4−ySeyF4 (x = 1 and 2 and y = 1.5 and 2) Superconductors
We have investigated the effect of pressure on Se-doped Eu2SrBi2S4F4 and EuSr2Bi2S4F4 at S sites. We report the electrical resistivity measurements under hydrostatic pressure (P) ~ 3 GPa and ~ 2.5Expand
Evolution of Superconductivity in BiS 2 -Based Superconductor LaO 0.5 F 0.5 Bi(S 1- x Se x ) 2
We have systematically investigated the crystal structure, magnetic susceptibility, and electrical resistivity of the BiS2-based superconductor LaO0.5F0.5Bi(S1−xSex)2 (x = 0–0.7). With expanding la...
Detection of the flux dynamical regimes in Bi4O4S3 by multiharmonic AC susceptibility
Abstract The temperature dependent first and third harmonics of the AC magnetic susceptibility χ 1,3 ( T ) have been measured on Bi 4 O 4 S 3 . The χ 1 ( T ) magnetic response is due to theExpand
Electron-Phonon Superconductivity in LaO$_{0.5}$F$_{0.5}$BiSe$_{2}$
We report density functional calculations of the electronic structure, Fermi surface, phonon spectrum and electron--phonon coupling for newly discovered superconductor LaO$_{0.5}$F$_{0.5}$BiSe$_{2}$.Expand


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.
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.
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.
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