Magnetic structure and spin-wave excitations in the multiferroic magnetic metal-organic framework (CD3)2ND2[Mn(DCO

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.

Spin wave excitations of magnetic metalorganic materials

“…In particular metal organic frameworks and organic molecular crystals exhibit promising structures for electron-spin-based devices. Magnetic organics have attracted attention with respect to spintronic devices [1][2][3] and magnon spintronics [4], multiferroic phases [5,6], molecular qubits [7,8], and spin-liquid physics [9][10][11]. Local magnetic moments in organic materials can arise due to transition metal and rare earth ions embedded in the molecules or due to local unsaturized bonds as they occur in stable organic radicals [12][13][14].…”

Strong magnetic exchange and frustrated ferrimagnetic order in a weberite-type inorganic–organic hybrid fluoride

“…Excitingly, a growing number of research groups are working to dispel this idea, with a rich diversity of magnetic behaviours in coordination frameworks now beginning to capture the imagination of the magnetism community more widely. [9][10][11][12] For instance, there are a few cases of inorganic-organic hybrid framework materials that have sufficiently dense structures that the magnetic ordering of their paramagnetic metal ion centres occurs above liquid nitrogen temperatures. Several prime examples are to be found within an extensive series of weberite-type inorganic-organic hybrid fluorides, M 2+ M 3+ F5(Htaz), where M 2+ = Mn, Fe, Co, Ni, Cu, Zn, M 3+ = Ti, V, Mn, Fe, Ga and Htaz is the organic linker 1,2,4-triazole.…”

“…However, the magnetic properties of such coordination frameworks also tend to be less well-explored, again, arguably due to the generalization that their less dense crystal structures disfavour the cooperative magnetic phenomena inherent to conventional inorganic solids. Excitingly, a growing number of research groups are working to dispel this idea, with a rich diversity of magnetic behaviours in coordination frameworks now beginning to capture the imagination of the magnetism community more widely [9][10][11][12]. For instance, there are a few cases of inorganic-organic hybrid framework materials that have sufficiently dense structures that the magnetic ordering of their paramagnetic metal ion centres occurs above liquid nitrogen temperatures.…”

Topological evolution of correlated band structures and heavy-fermion-like behavior in a molybdenum-based metal organic framework C48S36Mo6

“…Since Yaghi et al proposed the concept of metal organic frameworks (MOFs) in 1995, MOFs have received more and more attention and research, not only in inorganic and materials chemistry community [1][2][3][4][5][6] but also in recent physics community [7]. MOFs materials are composed of the metal ions and bridging organic molecules, and their structures and constituents can be adjusted easily, which makes them potentially applied to practice industry, such as energy storage, gas adsorption, gas separating, catalysts, optoelectric devices and membranes [8][9][10][11][12][13][14].…”

“…new strong correlated materials and topological non-trivial materials, due to the high tailorability and tunability arising from their discrete molecular building-block nature [5]. The multiferroic metal-organic framework materials (CD 3 ) 2 ND 2 [M(DCO 2 ) 3 ] (M = Mn, Co, Fe, and Ni) have been fabricated successfully [15,16], and recent neutron scattering data indicates it is a G-type antiferromagnet with magnetic easy axis pointing along the crystallographic axis [4].…”