STATIC NONUNIFORM MAGNETIC-SUSCEPTIBILITY OF SELECTED TRANSITION-METALS

A theoretical basis is given for the determination of the static, but wave-vector dependent, magnetic susceptibility (unenhanced and enhanced). It is based on the local density approximation and is applied to the transition metals V, Cr, Rh, Pd as well as Fe, Co and Ni. In the first group we contrast the susceptibility behaviour of Cr with that of Pd both of which are near a magnetic instability, and compare these behaviours with that of V and Rh. In all cases the Stoner parameter I(q) is obtained and discussed. Our results for the magnetic metals in the second group clearly distinguish the two forms of Fe, FCC-Fe having a non-collinear and BCC-Fe a ferromagnetic ground state. For FCC-Co, HCP-Co, and Ni the self-consistently determined magnetic moments were found to vanish for q larger than 0.6, 0.9 and 0.5 in (0, 0, q) (2-pi/a), respectively. Near these values of the wave vector the enhanced susceptibility peaks strongly. Our results for the magnetic susceptibilities are compared with results of other calculations.