Evolution of superconductivity in BiS2-based superocnductor LaO0.5F0.5Bi(S1-xSex)2

Abstract

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 lattice volume by Se substitution, bulk superconductivity was induced for x > 0.2, and the highest Tc of 3.8 K was observed in x = 0.5 (LaO0.5F0.5BiSSe). Metallic conductivity was observed for x > 0.3 in the resistivity measurement, whereas semiconducting-like behavior was observed for x < 0.2. The induction of bulk superconductivity by the partial substitution of S by Se in the LaO0.5F0.5BiS2 superconductor should be positively linked to the enhancement of metallic conductivity.

arXiv comment18 pages, 6 figures

References in corpus (25)

• Superconductivity in novel BiS2-based layered superconductor LaO1-xFxBiS2
• Novel BiS2-based layered superconductor Bi4O4S3
• Superconductivity Appears in the Vicinity of an Insulating-Like Behavior in CeO${}_{1-x}$F${}_x$BiS${}_2$
• Minimal electronic models for superconducting BiS${}_2$ layers
• Superconductivity of F-substituted LnOBiS2 (Ln = La, Ce, Pr, Nd, Yb) compounds
• Ferroelectric Soft Phonons, Charge Density Wave Instability and Strong Electron-Phonon Coupling in BiS2-Layered Superconductors
• Superconductivity induced by La doping in Sr1-xLaxFBiS2 system
• Pressure Study of BiS2-Based Superconductors Bi4O4S3 and La(O,F)BiS2
• Superconductivity induced by electron doping in the system La1-xMxOBiS2 (M = Ti, Zr, Hf, Th)
• Pressure-induced Enhancement of Superconductivity in BiS${}_2$-layered LaO${}_{1-x}$F${}_x$BiS${}_2$
• Charge-density wave, superconductivity and $f$-electron valence instability in EuBiS${}_2$F
• Evolution of superconductivity in LaO1-xFxBiS2 prepared by high pressure technique
• Pressure-induced enhancement of superconductivity and suppression of semiconducting behavior in Ln(O0.5F0.5)BiS2 (Ln = La, Ce) compounds
• Coexistence of bulk superconductivity and ferromagnetism in CeO1-xFxBiS2
• Role of the Ce valence in the coexistence of superconductivity and ferromagnetism of CeO${}_{1-x}$F${}_x$BiS${}_2$ revealed by Ce $L_3$-edge x-ray absorption spectroscopy
• Enhancement of superconductivity near the pressure-induced semiconductor-metal transition in BiS2-based compounds LnO(0.5)F(0.5)BiS2 (Ln = La, Ce, Pr, Nd)
• Stabilization of high-Tc phase of BiS2-based superconductor LaO0.5F0.5BiS2 using high-pressure synthesis
• Insulator-to-Superconductor Transition upon Electron Doping in a BiS${}_2$-Based Superconductor Sr${}_{1-x}$La${}_x$FBiS${}_2$
• Correlation between crystal structure and superconductivity in LaO0.5F0.5BiS2
• Enhancement of Tc by uniaxial lattice contraction in BiS2-based superconductor PrO0.5F0.5BiS2
• Minimum model and its theoretical analysis for superconducting materials with BiS${}_2$ layers
• High-Tc Phase of PrO0.5F0.5BiS2 single crystal induced by uniaxial pressure
• Effect of yttrium substitution on the superconducting properties of the system La${}_{1-\text{x}}$Y${}_{\text{x}}$O${}_{0.5}$F${}_{0.5}$BiS${}_2$
• Chemical pressure effect on Tc in BiS2-based Ce1-xNdxO0.5F0.5BiS2
• Effect of Se doping in recently discovered layered Bi4O4S3 Superconductor

Cited by in corpus (19)

• In-plane chemical pressure essential for superconductivity in BiCh2-based (Ch: S, Se) layered structure
• Material Development and Physical Properties of BiS2-Based Layered Compounds
• Superconductivity in REO0.5F0.5BiS2 with high-entropy-alloy-type blocking layers
• Evolution of Anisotropic Displacement Parameters and Superconductivity with Chemical Pressure in BiS2-Based REO0.5F0.5BiS2 (RE = La, Ce, Pr, and Nd)
• Intrinsic Phase Diagram of Superconductivity in the BiCh2-based System Without In-plane Disorder
• Site Selectivity on Chalcogen Atoms in Superconducting La(O,F)BiSSe
• Indication of unconventional superconductivity in layered bismuth chalcogenide superconductor LaO0.6F0.4Bi(S,Se)2 revealed by Se isotope effect
• Bulk Superconductivity Induced by In-plane Chemical Pressure Effect in Eu0.5La0.5FBiS2-xSex
• Superconducting gap symmetry of the BiS${}_2$-based superconductor LaO${}_{0.5}$F${}_{0.5}$BiSSe elucidated through specific heat measurement
• Crystal structure, site selectivity, and electronic structure of layered chalcogenide LaOBiPbS3
• Effect of Lead Substitution on LaO0.5F0.5BiS2
• Superconductivity phase diagram of Se-substituted CeO0.5F0.5Bi(S1-xSex)2
• Superconductivity in La1-xCexOBiSSe: carrier doping by mixed valence of Ce ions
• Anomalous impact of hydrostatic pressure on superconductivity of polycrystalline LaO0.5F0.5BiSe2
• Superconductivity of Electron-Doped NdOBiS2 by Substitution of Mixed-Valence Ce ions
• Synchrotron powder X-ray diffraction and structural analysis of Eu0.5La0.5FBiS2-xSex
• Bulk superconductivity induced by Se substitution in self-doped BiCh2-based compound CeOBiS2-xSex
• High-pressure effects on superconducting properties and crystal structure of Bi-based layered superconductor La2O2Bi3Ag0.6Sn0.4S6
• The upper critical field in the BiCh2-based superconductors CeOBiS1.7Se0.3 and PrO0.5F0.5BiS2-xSex (x = 0, 0.3)