Theoretical Investigation of Energy Splitting of γ-LiAlO₂: Co³⁺ Ceramic

Abstract

The γ-LiAlO2:Co 3+ ceramics were successfully fabricated by using multi-mode cavity microwave furnace, and the sample’s infrared absorption and photoluminescence spectra were measured at room temperature. There are nine bands in the range of 1300-48000 cm-1. Using the crystal-field theory and introducing the average covalent factor model, we calculated the energy splittings of Co3+ ions in γ-LiAlO2. These bands were firstly explained and assigned. These calculation results are in good agreement with the optical experiment data.