Abstract
Optical detection of magnetic resonance is reported for the 0.97-eV luminescence in neutron-irradiated silicon. The resonance is of an excited triplet () state of the defect, which is not the radiative state, known to be a singlet (). The spectrum is unusual in that it is characteristic of a statically distorted defect (from to ), but with residual dynamic tunneling effects where random strain stabilizes mixtures of the static distortions. Vacancy-related models previously suggested for the defect are tentatively ruled out.
- Received 9 November 1981
DOI:https://doi.org/10.1103/PhysRevLett.48.37
©1982 American Physical Society