E.P.R. studies of type IIa diamond, electron irradiated at liquid-nitrogen temperature
- 1 May 1978
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine A
- Vol. 37 (5) , 639-648
- https://doi.org/10.1080/01418617808239196
Abstract
A natural type IIa diamond has been irradiated with 2 MeV electrons to a dose of 4 × 1013 electrons cm−2 at approximately 80 K. The E.P.R. spectrum measured immediately after irradiation showed the W-6 system and some unanalysed structure. It was unchanged by pulse annealing to room temperature, indicating that it is unlikely that a defect is mobile in this temperature range. However, measurements of the temperature dependence of the spectrum showed that W-6 is homogeneously broadened and unobservable by room temperature. The R-3 system was seen at 100 K, and its intensity increased with temperature. It is deduced that the R-3 system arises from an excited state. Tentative models for these defects are discussed in terms of interstitial-impurity complexes.Keywords
This publication has 4 references indexed in Scilit:
- Electron paramagnetic resonance in low-temperature electron-irradiated diamondJournal de Physique, 1977
- E.S.R. in diamond electron-irradiated at low temperaturePhilosophical Magazine, 1971
- Electron spin resonance in electron-irradiated diamondPhilosophical Magazine, 1962
- A Modified Perturbation Procedure for a Problem in ParamagnetismProceedings of the Physical Society. Section A, 1950