Magnetic structure and spin wave excitations in the multiferroic magnetic metal-organic framework (CD3)2ND2[Mn(DCO2)3]
Abstract
We report the magnetic diffraction pattern and spin wave excitations in (CD3)2ND2[Mn(DCO2)3] measured using elastic and inelastic neutron scattering. The magnetic structure is shown to be a G-type antiferromagnet with moments pointing along the b axis. By comparison with simulations based on linear spin wave theory, we have developed a model for the magnetic interactions in this multiferroic metal-organic framework material. The interactions form a three-dimensional network with antiferromagnetic nearest-neighbour interactions along three directions of J1=-0.103(8)~meV, J2=-0.032(8)~meV and J3=-0.035(8)~meV.
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