An overview of the various shallow and deep acceptor centres in 9Be-doped 6H-type material was presented. The g-, hyperfine and quadrupole tensors of up to 8 centres were identified. Their geometrical and electronic structures resembled those of the B-related centres in this material. Three of them exhibited the behaviour which was characteristic of shallow B centres. Five of them exhibited the behaviour which was characteristic of that of deep centre. Two of the deep centres were not found in B-doped 6H-types material.

The Electronic Structure of the Be Acceptor Centers in 6H-SiC A.Van Duijn-Arnold, J.Schmidt, O.G.Poluektov, P.G.Baranov, E.N.Mokhov: Materials Science Forum, 2000, 338-342, 805-8