Surface effects in neutron-irradiated CdSb crystals
DOI:
https://doi.org/10.15330/pcss.27.2.361-365Keywords:
Surface, radiation defects, diffusion coefficients, neutron-irradiated, annealing, CdSb crystalsAbstract
The influence of structural defects in fast neutron-irradiated CdSb to 2 ⸱ 1018 n/cm2 on the state of the crystal surface was studied. It was shown that during storage of irradiated crystals, their surface (layer 60 ÷ 80 μm) increases its conductivity. A model is proposed that explains the influence of irradiation on the state of the crystal surface. The migration energy of interstitial cadmium atoms, the values of diffusion coefficients at different temperatures, and the frequency factor are experimentally determined. Also, the isochronal annealing of radiation defects in neutron-irradiated CdSb crystals was studied in detail.
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