Resonant Plasmon-Axion Excitations Induced by Charge Density Wave Order in Weyl Semimetal

Matthew D. Redell, Shantanu Mukherjee, Wei-Cheng Lee

We investigate the charge excitations of a Weyl semimetal in the axionic charge density wave (axionic CDW) state. While it has been shown that the topological response (anomalous H…