Inelastic neutron scattering study of molecular multiferroic (ND4)2[FeCl5(D2O)]
ORAL
Abstract
(ND4)2[FeCl5(D2O)] was recently discovered to exhibit magnetically induced multiferroicity. At zero field, the system first undergoes a magnetic long-range order transition to an incommensurate (IC) collinear sinusoidal spin state at TN=7.3 K, followed by a second transition to an IC cycloidal spin state at TFE=6.8K accompanied by spontaneous ferroelectric polarization. Applying modest magnetic field along a, or c-axis induces transitions to distinct magnetic and ferroelectric phases. Here we report preliminary inelastic neutron scattering results that reveal the spin dynamic in this molecular multiferroic material.
*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
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Wei Tian
- Oak Ridge National Laboratory
- Neutron Sciences Directorate, Oak Ridge National Laboratory
- Neutron Scattering Division, Oak Ridge National Laboratory
- Oak Ridge National Lab