Observation of long-wavelength modulation in chiral Mn1/3NbS2

ORAL

Abstract

We have investigated the magnetic properties of Mn1/3NbS2, through neutron diffraction and magnetic susceptibility measurements. Mn1/3NbS2 crystallizes in the non-centrosymmetric hexagonal space group P6322 and is built from NbS2 layers intercalated by Mn ions. The Mn atoms are situated in the octahedral holes between trigonal prismatic layers of 2H-NbS2. The magnetic susceptibility and magnetization indicate a magnetic transition at TN ~ 45 K with an anisotropy that is similar to that observed in Cr1/3NbS2. Neutron diffraction reveals increased scattering near the structural Bragg peaks. However, our data indicate that the magnetic scattering had a wider q-dependence than the nuclear Bragg peaks suggesting a long wavelength modulation of the magnetic ordering along the c-axis.

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Presenters

  • Sunil Karna

    Department of Physics & Astronomy, Louisiana State University, Physics and Astronomy Department, Louisiana State University

Authors

  • Sunil Karna

    Department of Physics & Astronomy, Louisiana State University, Physics and Astronomy Department, Louisiana State University

  • David P Young

    Physics, Louisiana State University, Physics and Astronomy Department, Louisiana State University, Louisiana State University

  • Frank N. Womack

    Physics and Astronomy Department, Louisiana State University

  • Yan Wu

    Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge National Laboratory

  • Huibo Cao

    Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge National Laboratory, Quantum Condensed Matter Division, Oak Ridge National Laboratory

  • Lisa DeBeer-Schmitt

    Neutron Science Directorate, Oak Ridge National Laboratory, Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge National Laboratory

  • Philip W Adams

    Physics and Astronomy Department, Louisiana State University

  • John Ditusa

    Louisiana State University, Physics and Astronomy Department, Louisiana State University