Charge Dynamics of an Unconventional Three-Dimensional Charge Density Wave in Kagome FeGe

Shaohui Yi, Zhiyu Liao, Qi Wang +10

We report on the charge dynamics of kagome FeGe, an antiferromagnet with a charge density wave (CDW) transition at $T_{\mathrm{CDW}}\simeq 105$ K, using polarized infrared spectro…