The production and structure of the P-P3anti-site defect in electron-irradiated n-type GaP
- 30 December 1984
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 17 (36) , L963-L968
- https://doi.org/10.1088/0022-3719/17/36/002
Abstract
Samples of n-type GaP doped with either (a) sulphur or (b) silicon to concentrations of about 1018 atoms/cm3 have been compared using EPR and IR measurements following a series of small doses of 2 MeV electron irradiation at room temperature. The EPR spectrum due to the (P-P3) antisite defect is produced up to a similar strength in both materials. The measurements suggest that it is unlikely that the defect involves an impurity. The authors speculate that the (P-P3) centre may be a gallium vacancy distorted to give (Vp-PGa) or a trigonal (VP-PGa-Gai) complex produced by a knock-on process.Keywords
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