Dynamic effects of the Dzyaloshinskii-Moriya Interaction in quantum spin dimers

The noncollinear Dzyaloshinskii-Moriya (DM) Interaction has picked up significant interest over the last decade due to the emerging field of Spintronics seeing great potential for the mechanism. Hence, the finding of the effects of the DM Interaction has also been attractive to nanoscale magnetics. Here we uncover the effects of the DM interaction on the well-studied quantum spin dimer for S₁ = S₂ = 1/2 and 1 by providing analytical solutions to thermodynamic quantities and inelastic neutron scattering to find a structure factor describing the system. Starting with a standard spin-spin exchange Hamiltonian, we introduce an external magnetic field, anisotropy, and the DM interaction. We show that the DM interaction splits energy eigenstates, which alters the thermodynamic quantities, and changes the intensities neutron structure factor for the dimer.