Circular dichroism as a probe for topology in three-dimensional semimetals
Circular dichroism as a probe for topology in three-dimensional semimetals
Higher-pseudospin fermions, associated with multiple band crossings in topological semimetals, are condensed matter analogs of higher-spin fermions in high-energy physics. In this paper, we demonstrate that analyzing the response of a circular drive is an effective way to detect the topology of the lowest-energy Bloch band, as it can be …