MAGNETOABSORPTION OSCILLATIONS AND ZEEMAN EFFECT OF EXCITONS FOR FORBIDDEN INTERBAND TRANSITIONS IN CU2O CRYSTALS

Magnetoabsorption oscillations were studied in cubic Cu2O at 1.5°K for 7+6+ forbidden interband transitions in strong dc magnetic fields. The theoretical analysis indicates that in the case of forbidden transitions, oscillations in the magnetoabsorption enable one to evaluate the electron and hole effective masses separately; these were found to be me=0.61m0 and mh=0.84m0. The effective magnetic moment of the hole was determined to be h=-1.3×10-5 G-1cm-1. The dielectric constant for Cu2O calculated from these data is 0=7.1. The Zeeman effect of the yellow-series exciton lines was also studied both experimentally and theoretically. © 1969 The American Physical Society.