Magneto-optical probe of the fully gapped Dirac band in ZrSiS
Magneto-optical probe of the fully gapped Dirac band in ZrSiS
This paper provides an insight into the low-energy electrodynamics of ZrSiS, a model nodal-line semimetal, by reporting results of optical conductivity measurements under external magnetic fields. Optical detection of transitions between different Landau levels enables a direct probe of the bands forming the nodal line.