ANTISITE DEFECTS CREATED IN NEUTRON-IRRADIATED GAP CRYSTALS

This article compares the nature of phosphorus antisite defects in as- grown and neutron irradiated GaP crystals. Electron spin resonance stu dies indicate that these defects in both kinds of crystals have identi cal close neighbors consisting of four phosphorus atoms. Neutron irrad iation of GaP introduced an additional defect (called WA1), which is l inked to a gallium antisite. Characteristic absorption bands and condu ctivity of neutron irradiated CaP crystals are discussed as well. (C) 1995 American Institute of Physics.