Electronic state and g-factor of Er3+ ion doped in InP

The electronic state of Er3+ ion doped in InP is investigated by calculating the crystalline electric field at Er ion that substitutes an In ion in InP. The energy level of the 16-fold degenerate J states of Er3+ ion is split into two doublets and three quartets. For the obtained ground doublet, g-factor is evaluated. Results are discussed in connection with observations.