Abstract

Although there have been many calculations of the structures of the self-interstitial in Si and small aggregates of interstititals, I n , there has been little attempt to relate the defects with experimental data. Here we discuss the assignments of the self-interstitial to the AA12 electron paramagnetic resonance (EPR) centre, and the tri-interstitial and tetra-interstitial to the W-optical centre and the B3 EPR centre, respectively. Difficulties in the assignment of I 2 to the P6 EPR centre are also noted.

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