Chiral electronic excitations and strong electron-phonon coupling to Weyl fermions in the Kagome semimetal Co${}_3$Sn${}_2$S${}_2$

G. He, M. Kute, Z. C. Xu +10

We present results of a Raman scattering study of the Kagome ferromagnet Co${}_3$Sn${}_2$S${}_2$, with a focus on electronic and phononic excitations and their interplay. We provide a th…