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arXiv · 1709.10274

Magnetic structure and spin wave excitations in the multiferroic magnetic metal-organic framework (CD$_3$)$_2$ND$_2$[Mn(DCO$_2$)$_3$]

H. C. Walker·H. D. Duncan·M. D. Le·D. A. Keen·D. J. Voneshen·A. E. Phillips
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Abstract

We report the magnetic diffraction pattern and spin wave excitations in (CD$_3$)$_2$ND$_2$[Mn(DCO$_2$)$_3$] 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 $J_1=-0.103(8)$~meV, $J_2=-0.032(8)$~meV and $J_3=-0.035(8)$~meV.

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H. C. Walker, H. D. Duncan, M. D. Le, D. A. Keen, D. J. Voneshen, A. E. Phillips. 2017-09-29. Magnetic structure and spin wave excitations in the multiferroic magnetic metal-organic framework (CD$_3$)$_2$ND$_2$[Mn(DCO$_2$)$_3$]. https://doi.org/10.1103/physrevb.96.094423

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