Sphalerite structural analogs

An interstitial atom in an antibonding (AB) site is bonded to its nearest neighbour lattice atom. This location is often found in H complexes involving a donor atom and results in the relaxation of the local lattice bonding. There also exists a special interstitial structure, the di-interstitial configuration. Incidentally, Fig. 2.5 shows the ternary symmetry of the sphalerite lattice along a <111 > direction. This is analogous with the wurtzite structure, where... 

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