Pressure-induced superconductivity in Iron pnictide compound SrFe2As2

Abstract

Electrical resistivity under high pressure have been measured on nominally pure SrFe2As2 up to 14 GPa. The resistivity drop appeared with increasing pressure, and we clearly observed zero resistivity. The maximum of superconducting transition temperature (Tc) is 38 K. The value is corresponding to the one of optimally doping AFe2As2 (A=Sr, Ba) system with K+ ions at the A2+ site.

10 pages, 2 figures

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• Effect of pressure on the magnetostructural transition in SrFe2As2
• Pressure-induced shift of T${}_c$ in K${}_x$Sr${}_{1-x}$Fe${}_2$As${}_2$ (x=0.2, 0.4, 0.7): Analogy to the high-T${}_c$ cuprate superconductors

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• EuFe${}_2$As${}_2$ under high pressure: an antiferromagnetic bulk superconductor
• Intrinsic Properties of AFe2As2 (A = Ba, Sr) Single Crystal under Highly Hydrostatic Pressure Conditions
• High Pressure Studies on Fe-Pnictide Superconductors
• Pressure induced superconductivity in BaFe2As2 single crystal
• Water-induced superconductivity in SrFe2As2
• Superconductivity induced by ruthenium substitution in an iron arsenide: investigation of SrFe2-xRuxAs2 (0 <= x <= 2)
• Presure-Induced Superconducting State of Antiferromagnetic CaFe${}_2$As${}_2$
• Effect of Uniaxial Stress for Pressure-Induced Superconductor SrFe_2As_2
• 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)
• Superconductivity at 23 K and Low Anisotropy in Rb-Substituted BaFe_2As_2 Single Crystals
• Suppression of antiferromagnetic spin fluctuations in the collapsed tetragonal phase of CaFe2As2
• Microscopic origin of pressure-induced phase transitions in iron-pnictide $AF{e}_{2}A{s}_2$ superconductors: an {ab initio} molecular-dynamics study
• Pressure-induced phase transitions and high-pressure tetragonal phase of Fe1.08Te
• The Electronic Phase Diagram of the Iron-based High Tc Superconductor Ba(Fe(1-x)Co(x))2As2 Under Hydrostatic Pressure (0 < x <0.099)
• Superconductivity at 31 K in 111 type iron arsenide superconductor NaxFeAs induced by pressure
• Superconductivity at 52 K in hydrogen-substituted LaFeAsO1-xHx under high pressure
• Anomalous Pressure Dependence of the Superconducting Transition Temperature in FeSe1-x Studied by DC Magnetic Measurements
• Origin of critical-temperature enhancement of an iron-based high-T_c superconductor, LaFeAsO_{1-x}F_{x} : NMR study under high pressure
• Hydrostatic pressure effect on Tc of new BiS2 based Bi4O4S3 and NdO0.5F0.5BiS2 layered superconductors
• Study of the anisotropic magnetic order of the Eu sublattice in single crystals of EuFe_2-xCo_xAs_2 (x = 0, 0.2) by means of magnetization and magnetic torque
• Disorder effects in pnictides : a tunneling spectroscopy study
• Emergent electronic structure of CaFe2As2
• Optical Study of BaFe${}_2$As${}_2$ under pressure: Coexistence of spin-density-wave gap and superconductivity
• Pressure suppression of spin-density-wave gap in the optical conductivity of SrFe2As2
• Pressure-Induced Antiferromagnetic Bulk Superconductor EuFe${}_2$As${}_2$
• Effect of Co doping and hydrostatic pressure on SrFe2As2