Effect of controlled point-like disorder induced by 2.5 MeV electron irradiation on nematic resistivity anisotropy of hole-doped (Ba,K)Fe<sub>2</sub>As<sub>2</sub>

ORAL

Abstract

In iron-based superconductors in-plane anisotropy of electrical resistivity in strain-detwinned samples strongly depends on residual resistivity [1]. The mechanism of the electronic transport responcible for sign change of in-plane resistivity anisotropy in hole-doped (Ba,K)Fe2As2 [2] attracts notable interest, since contributions from both elestic scattering due to impurities/defects and inelastic scattering on magnetic excitations and phonons can be anisotropic. We use irradiation with relativistic 2.5 MeV electrons at low temperatures to change residual resistivity and study the contribution of elastic scattering into anisotropic electronic transport.The modification of detwinning technique enabled measurements of the same samples before and after irradiation.
X Prefer Oral Session

[1] S. Ishida, et. al., Phys. Rev. B 84, 184514 (2011).
[2] E.C. Blomberg, et. al., Nature Comm. 4, 1914 (2013).

*This work was supported by the US DOE, Office of Science, BES Materials Science and Engineering Division under contract # DE-AC02-07CH11358. Work at SIRIUS facility at Ecole Polytechnique is supported by the EMIR network, proposal 16-2125.

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Presenters

  • Makariy Tanatar

    • Ames Laboratory
    • Ames Laboratory US DOE, Ames, Iowa
    • Ames Laboratory and Iowa State University, Ames, IA, USA
    • Ames Laboratory and Department of Physics & Astronomy, Iowa State University, Ames, IA 50010, USA

Authors

  • Makariy Tanatar

    • Ames Laboratory
    • Ames Laboratory US DOE, Ames, Iowa
    • Ames Laboratory and Iowa State University, Ames, IA, USA
    • Ames Laboratory and Department of Physics & Astronomy, Iowa State University, Ames, IA 50010, USA

  • Erik Timmons

    • Department of Physics and Astronomy, Iowa State University, Ames, Iowa
    • Ames Laboratory and Department of Physics & Astronomy, Iowa State University, Ames, IA 50010, USA

  • Kyuil Cho

    • Ames Laboratory US DOE, Ames, Iowa
    • Ames Laboratory
    • Ames Laboratory and Iowa state University, USA
    • Ames Laboratory and Iowa State University, Ames, IA, USA
    • Ames Laboratory and Department of Physics & Astronomy, Iowa State University, Ames, IA 50010, USA

  • Yong Liu

    • Ames Laboratory US DOE, Ames, Iowa
    • Ames Laboratory and Iowa state University, USA

  • Thomas Antony Lograsso

    • Ames Laboratory US DOE, Ames, Iowa
    • Ames Laboratory and Iowa state University, USA

  • Ruslan Prozorov

    • Ames Laboratory US DOE, Ames, Iowa
    • Iowa State University
    • Ames Laboratory, Iowa State University
    • Ames Laboratory
    • Ames Laboratory and Iowa state University, USA
    • Ames Laboratory and Iowa State University, Ames, IA, USA
    • Ames Laboratory and Department of Physics & Astronomy, Iowa State University, Ames, IA 50010, USA

  • Marcin Konczykowski

    • Laboratoire des Solides Irradiés, École Polytechnique, F-91128 Palaiseau, France
    • Ecole Polytechnique
    • Ecole Polytechnique, Palaiseau, France
    • LSI, Ecole Polytechnique
    • Laboratoire des Solides Irradies, Ecole Polytechnique

  • Olivier Cavani

    • Laboratoire des Solides Irradiés, École Polytechnique, F-91128 Palaiseau, France