Optical transitions of a single nodal ring in SrAs${}_3$: radially and axially resolved characterization

Jiwon Jeon, Jiho Jang, Hoil Kim +7

SrAs${}_3$ is a unique nodal-line semimetal that contains only a single nodal ring in the Brillouin zone, uninterrupted by any trivial bands near the Fermi energy. We performed axis-…