Impact of hydrostatic pressure on superconductivity of Sr0.5La0.5FBiS2

Abstract

We report the impact of hydrostatic pressure (0-1.97GPa) on superconductivity of recently discovered 2K superconductor Sr0.5La0.5FBiS2. Resistivity under pressure measurements are performed by using HPC-33 Piston type pressure cell with Quantum design DC resistivity Option. The superconducting transition temperature (Tc) is increased by 5 fold to around 10K with just above 1GPa pressure, which remains nearly unaltered for studied higher pressures of up to 1.97GPa. The fivefold increase in Tc of Sr0.5La0.5FBiS2 with just above 1GPa pressure suggests very strong electron correlations in these systems and the same calls for the attention of solid state physics community.

11 pages text + Figs: Five fold increase in Tc with Just above 1GPa

References in corpus (11)

• Superconductivity at 43 K in Samarium-arsenide Oxides $SmFeAs{O}_{1-x}{F}_x$
• To What Extent Iron-Pnictide New Superconductors Have Been Clarified: A Progress Report
• Superconductivity at 52 K in iron-based F-doped layered quaternary compound Pr[O1-xFx]FeAs
• Superconductivity Appears in the Vicinity of an Insulating-Like Behavior in CeO${}_{1-x}$F${}_x$BiS${}_2$
• 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
• Evolution of superconductivity in LaO1-xFxBiS2 prepared by high pressure technique
• Insulator-to-Superconductor Transition upon Electron Doping in a BiS${}_2$-Based Superconductor Sr${}_{1-x}$La${}_x$FBiS${}_2$
• Resistivity saturation in PrFeAsO${}_{1-x}$F${}_y$ superconductor: An evidence of strong electron-phonon coupling

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