@ARTICLE {29661,
author={M. G. Silveirinha},
doi={10.1103/PhysRevB.100.165146},
journal={Physical Review B - Condensed Matter and Materials Physics},
title={Spontaneous rotational symmetry breaking in a Kramers two-level system},
year={2019},
month={October},
volume={100},
number={16},
pages={1-15},
ISSN={1098-0121}
}