Spin dynamics in molecular multiferroic (ND<sub>4</sub>)<sub>2</sub>[FeCl<sub>5</sub>(D<sub>2</sub>O)]

ORAL

Abstract

(ND4)2[FeCl5(D2O)] is a molecular magnet that exhibits extraordinary coupled magnetic and ferroelectric properties. Applying modest magnetic field induces successive magnetic transitions with distinct magnetoelectric (ME) coupling and the underlying mechanism is not fully understood yet. Knowing the microscopic interactions is essential to understand the complex coupled phenomena. We performed inelastic neutron scattering experiments to measure the spin dynamics in (ND4)2[FeCl5(D2O)]. We will present here some INS data analysis results using linear spin wave theory.

*Research conducted at ORNL's Spallation Neutron Source and High Flux Isotope Reactor was sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, U. S. Department of Energy.

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Presenters

  • Jaime Fernandez-Baca

    • Oak Ridge National Laboratory

Authors

  • Wei Tian

    • 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

  • Gabriele Sala

    • Oak Ridge National Lab
    • Oak Ridge National Laboratory
    • Neutron Scattering Division, Oak Ridge National Laboratory
    • Neutron Scattering Division, Oak-Ridge National Laboratory
    • Neutron Scattering Division, Oak Ridge National Lab

  • Tao Hong

    • Oak Ridge National Laboratory
    • Neutron Scattering Division, Oak Ridge National Laboratory
    • Neutron Scattering Division, Oak-Ridge National Laboratory
    • Neutron Scattering Division, Oak Ridge National Lab

  • Randy Fishman

    • Oak Ridge National Laboratory
    • Materials Science and Technology Division, Oak Ridge National Lab, Oak Ridge, Tennessee, USA

  • Jaime Fernandez-Baca

    • Oak Ridge National Laboratory