Exciton Spectra of CaO and MgO

Abstract

Exciton spectra of crystalline CaO and MgO at 25°K are presented and interpreted in terms of valence-band spin-orbit splitting and strong exciton-phonon coupling.Received 22 May 1969DOI:https://doi.org/10.1103/PhysRevLett.22.1428©1969 American Physical Society