Evidence for the band broadening across the ferromagnetic transition in Cr${}_{1/3}$NbSe${}_2$

W. Z. Hu, G. T. Wang, Rongwei Hu +4

The electronic structure of Cr${}_{1/3}$NbSe${}_2$ is studied via optical spectroscopy. We observe two low-energy interband transitions in the paramagnetic phase, which split into four…