Extremely large magnetoresistance and Kohler's rule in PdSn4: a comprehensive study.

ORAL

Abstract

Systematic measurements of temperature and magnetic field dependent resistivity and magnetization, and electronic band structure properties obtained from angle resolved photoemission spectroscopy (ARPES) were conducted on high quality single crystals of PdSn4. We observe that PdSn4 has anisotropic properties with extremely large magnetoresistance (XMR). ARPES shows interesting surface features near Z and X points, and extensive electronic structure calculations agree well with ARPES. The X point feature corresponds to a gapped Dirac node arc, like observed in PtSn4. By comparing similar compounds, PdSn4 and PtSn4, we address the origin of the XMR in these compounds; neither carrier compensation nor the Dirac node arc surface state appear to be primary reason for the XMR. Additionally, perhaps remarkably, we find that Kohler's rule scaling of the magnetoresistance is obeyed over the full range of temperatures and field strengths that we explore.

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Presenters

  • Na Hyun Jo

    Ames Laboratory and Iowa State University, Ames Laboratory, Iowa State University, Iowa state university/Ames Laboratory

Authors

  • Na Hyun Jo

    Ames Laboratory and Iowa State University, Ames Laboratory, Iowa State University, Iowa state university/Ames Laboratory

  • Yun Wu

    Iowa state university/Ames Laboratory, Iowa State University / Ames Laboratory

  • Lin-Lin Wang

    Ames Laboratory, Iowa State University / Ames Laboratory

  • Peter Orth

    Department of Physics and Astronomy, Iowa State University, Iowa state university/Ames Laboratory, Department of Physics and Astronomy & Ames Laboratory, Iowa State University

  • Savannah Downing

    Ames Laboratory and Iowa State University, Ames Laboratory, Iowa State University, Iowa state university/Ames Laboratory

  • Soham Manni

    Iowa state university/Ames Laboratory, Ames Laboratory

  • Daixiang Mou

    Iowa state university/Ames Laboratory, Iowa State University / Ames Laboratory

  • Duane Johnson

    Iowa State University, Iowa state university/Ames Laboratory, Iowa State University / Ames Laboratory

  • Adam Kaminski

    Iowa state university/Ames Laboratory, Iowa State University / Ames Laboratory

  • Sergey Bud'ko

    The Ames Laboratory, Iowa state university/Ames Laboratory, Iowa State University and Ames Laboratory, Iowa State University/Ames Laboratory, Iowa State University / Ames Laboratory, Ames Laboratory and Iowa State University, Dept. of Physics and Astronomy, Dept. of Physics, Iowa State Univ, Ames Lab, Ames Laboratory U.S. DOE and Department of Physics and Astronomy, Iowa State University, Ames Laboratory, Department of Physics and Astronomy, Ames Laboratory and Iowa State University

  • Paul Canfield

    Ames Laboratory and Iowa State University, Ames Laboratory, Iowa State University, Department of Physics and Astronomy, Iowa State University, Dept. of Physics and Astronomy, Ames Laboratory/Iowa State University, Iowa state university/Ames Laboratory, Ames Laboratory and Iowa State Univ, Iowa State University and Ames Laboratory, Iowa State University/Ames Laboratory, Iowa State University, Iowa State University / Ames Laboratory, Dept. of Physics, Iowa State Univ, Ames Lab, Ames Laboratory U.S. DOE and Department of Physics and Astronomy, Iowa State University, Iowa State Univ, Ames Laboratory, Department of Physics and Astronomy, Ames Laboratory and Iowa State University