Scattering Signatures of Bond-Dependent Magnetic Interactions

by Dr Joe Paddison (ORNL)

Monday 19 Apr 2021, 14:30 → 15:30 Europe/Berlin

Zoom Webinar

Bond-dependent magnetic interactions can generate exotic phases such as Kitaev spin-liquid states. Experimentally determining the values of bond-dependent interactions is a challenging but crucial problem. In this talk, I will show that bond-dependent interactions on triangular and honeycomb lattices have distinct signatures in diffuse magnetic neutron-scattering data, and that such data actually contain sufficient information to parametrise the spin Hamiltonian. I will conclude by introducing a new software program, Spinteract, designed to facilitate experimental determination of spin Hamiltonians for materials that do not show conventional magnetic ordering.