Magnetostriction and magnetic torque measurements of uranium monosulfide single crystals

ORAL

Abstract

The family of actinide compounds AX, where A = actinides and X = N, P, As, Sb, S, Se, and Te have drawn great interest in research of actinide compounds because of their simple structure and rich magnetic properties. Recent study of UO2 and UN revealed the effectiveness in probing the magneto-structural coupling in actinides by high magnetic field magnetostriction. Uranium monosulfide (US) crystalizes in simple cubic rock salt structure and exhibits the highest ferromagnetic transition temperature in uranium monochalcogenides (TC = 177 K) with easy axis along [111] direction. At the magnetic phase transition the crystal structure undergoes a rhombohedral distortion along one of the [111] directions with a large magnetic anisotropy. This might imply that strong magneto-elastic interactions play important role in this material. In this talk, our recent measurements of the magnetostriction and magnetic torque of uranium monosulfide single crystals will be presented.

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Presenters

  • Narayan Poudel

    Idaho National Laboratory, Texas Center for Superconductivity and Department of Physics, University of Houston, Texas Center for Superconductivity and Department of Physics, University of Houston, Houston, TX 77204, USA

Authors

  • Narayan Poudel

    Idaho National Laboratory, Texas Center for Superconductivity and Department of Physics, University of Houston, Texas Center for Superconductivity and Department of Physics, University of Houston, Houston, TX 77204, USA

  • Marcelo Jaime

    National High Magnetic Field Laboratory, Los Alamos, Los Alamos National Laboratory, National High Magnetic Field Laboratory, Los Alamos National Laboratory, Los Alamos, NM 87545, NHMFL, Los Alamos National Labs, NHMFL-LANL, Pulsed Field Faclity, National High Magnetic Field Laboratory

  • Franziska Weickert

    Florida State University, National High Magnetic Field Laboratory, Los Alamos, NHMFL, FSU, NHMFL, Los Alamos National Labs, Pulsed Field Faclity, National High Magnetic Field Laboratory

  • Jason R Jeffries

    Lawrence Livermore National Laboratory

  • Krzysztof Gofryk

    Idaho National Laboratory