Magnetic excitations in the topological semimetal ${\mathrm{YbMnSb}}_2$

Siobhan M. Tobin, Jian-Rui Soh, Hao Su +5

We report neutron scattering measurements on YbMnSb${}_2$ which shed new light on the nature of the magnetic moments and their interaction with Dirac fermions. Using half-polarized n…