Abstract
We report superconductivity in single crystals of the new iron-pnictide systemBaFe1.90Pt0.10As2 grown by a self-flux solution method and characterized via x-ray, transport, magnetic andthermodynamic measurements. The magnetic ordering associated with a structural transition at139 K presentin BaFe2As2 is completely suppressed by substitution of 5% Fe with Pt and superconductivity is induced at a criticaltemperature Tc = 23 K. Full diamagnetic screening in the magnetic susceptibility and a jump in the specific heat atTc confirm the bulk nature of the superconducting phase. All propertiesof the superconducting state—including the transition temperatureTc, the lower criticalfield Hc1 = 200 mT, theupper critical field Hc2≈ 65 T, and the slope ∂Hc2/∂T—are comparable in value to those found in other transition metal-substitutedBaFe2As2 series, indicating the robust nature of superconductivity induced by substitution of GroupVIII elements.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
