Doping-dependent inter-plane transport in electron doped Ba(Fe,$TM$)$_2$As$_2$ ($TM$=Co, Ni, Rh, Pd)

ORAL

Abstract

We report comprehensive characterization of the inter-plane resistivity in Ba(Fe,$TM$)$_2$As$_2$ as a function of transition metal doping, $TM$=Co, Ni, Pd, Rh. For all dopants we find different $T$-dependence of in-plane and inter-plane transport and moderate resistivity anisotropy at room temperature. The temperature-dependent inter-plane transport correlates well with NMR Knight shift and relaxation time [1], revealing effect of spin gap on electrical charge transport in iron-arsenic compounds. Doping phase diagram of the behavior is determined. [1] F. Ning, {\ it et al.} J. Phys. Soc. Jpn {\bf 78}, 013711 (2009).

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Authors

  • M. A. Tanatar

    Ames Laboratory

  • N. Ni

    Ames Laboratory and Iowa State University, IA, USA, Ames Laboratory / Iowa State University, Ames Laboratory, Dept of Physics/Ames Laboratory, Iowa State University, Department of Physics and Astronomy, Iowa State University

  • A. N. Thaler

    Ames Laboratory / Iowa State University, Dept of Physics/Ames Laboratory, Iowa State University, Department of Physics and Astronomy, Iowa State University

  • S.L. Bud'ko

    Ames Laboratory and Iowa State University, IA, USA, Ames Laboratory / Iowa State University, Ames Laboratory, Ames Laboratory/Iowa State University, Dept of Physics/Ames Laboratory, Iowa State University, Ames Laboratory and Department of Physics and Astronomy, Iowa State University

  • P.C. Canfield

    Ames Laboratory and Iowa State University, IA, USA, Ames Laboratory / Iowa State University, Ames Laboratory, Dept of Physics/Ames Laboratory, Iowa State University, Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames Laboratory/Iowa State University

  • Ruslan Prozorov

    ISU, Ames Laboratory and Department of Physics \& Astronomy, Iowa State University, Ames, IA 50011, Ames Laboratory, Ames Lab and Iowa State University, Ames Laboratory and Department of Physics and Astronomy, Iowa State University