Pair breaking in iron-based superconductors

ORAL

Abstract

The relative ease of crystal growth combined with the range of elements available for chemical substitution, especially on the transition metal site, has allowed for numerous studies of different iron-based superconductors. There are, however, remaining questions about the pairing symmetry in this system. We present transport scattering rate data for optimally-doped single crystals from several superconducting 122 materials and discuss the relationship between superconducting transition temperature and transport scattering rate in the context of pair breaking.

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Authors

  • Kevin Kirshenbaum

    University of Maryland at College Park

  • Shanta Saha

    Center for Nanophysics and Advanced Materials, Department of Physics, University of Maryland, College Park, MD, Center for Nano Physics and Advanced Materials, Department of Physics, University of Maryland, College Park, MD, University of Maryland at College Park, University of Maryland

  • Tyler Drye

    Center for Nanophysics and Advanced Materials, Department of Physics, University of Maryland, College Park, MD, Center for Nano Physics and Advanced Materials, Department of Physics, University of Maryland, College Park, MD, University of Maryland at College Park

  • Steven Ziemak

    University of Maryland at College Park

  • Johnpierre Paglione

    Center for Nanophysics and Advanced Materials, U. of Maryland, University of Maryland, Center for Nanophysics and Advanced Materials, Department of Physics, University of Maryland, College Park, MD, Center for Nano Physics and Advanced Materials, Department of Physics, University of Maryland, College Park, MD, Department of Physics, University of Maryland, University of Maryland at College Park, Center for Nanophysics \& Advanced Materials and Department of Physics, University of Maryland, College Park, MD 20742, USA