Reststrahlen band and optical bandgaps in semiconducting CrN films

Duc V. Dinh, Xiang Lü, Oliver Brandt +8

We present a comprehensive optical characterization of 200-nm-thick CrN(111) films grown simultaneously on Al${}_2$O${}_3$(0001) and AlN/Al${}_2$O${}_3$(0001) using plasma-assisted molecul…