D. Mao et al., OPTICALLY DETECTED MAGNETIC-RESONANCE STUDY OF ZN-DOPED INP - NUCLEAR-SPIN POLARIZATION AT PIN ANTISITES, Physical review. B, Condensed matter, 49(12), 1994, pp. 7952-7956
The antisite-acceptor recombination process in as-grown Zn-doped InP h
as been studied by optically detected magnetic resonance (ODMR) at 16.
6 GHz. A model of dynamic polarization of P nuclei at the excited anti
sites P(In)+ by partially unthermalized antisite electron spins is pro
posed to explain the difference in the intensity of the two hyperfine
lines of the antisite resonance. The trends of this difference with mi
crowave and laser power are also studied. We suggest that nuclear spin
polarization may be responsible for similar phenomena observed in a v
ariety of ODMR spectra of antisite resonances.