The structural, electronic and magnetic properties of alpha-MnS are in
vestigated using an ab initio periodic Linear combination of atomic or
bitals self-consistent field approach. The geometry is optimized and t
he electronic structure discussed in terms of charge and spin density
maps, band structure and density of states. The relative stability of
the antiferromagnetic AF(2) phase with respect to the ferromagnetic on
e is discussed as a function of the metal-metal distance. (C) 1997 Els
evier Science B.V.