Infrared Lattice Spectra of α-Al2O3 and Cr2O3

Abstract

Infrared-active lattice vibrational spectra of α-Al2O3 and Cr2O3 have been investigated by reflection and transmission measurements on single crystal samples and also by transmission on Nujol mulled Cr2O3. Single-crystal transmission data above 700 cm−1 have been assigned to combinations and overtones.