Magnetic Resonance Studies of Irradiation Damage Defects in Diamond: The Effect of Light on the Neutral and Negatively Charged Vacancy and the Di-<100>-Split Interstitial

摘要

New measurements on the R1 intrinsic radiation damage centre in diamond, recently identified as a di-<100>-split interstitial (DSI), indicate that (a) it can be spin polarised by radiation of energy greater than 1.7 eV, and (b) it is destroyed by annealing at about 600K with an associated transfer of an electron to a neutral vacancy, producing a temporary increase in the density of negatively charged vacancies.