Magnetic moments and bonding in Co-Nb-B alloys

Several new CoNbB amorphous and microcrystalline alloys have been melt quenched and their magnetic moments measured. Comparison is made with cobalt moment suppression in CoB, CoNb, CoV and other CoNbB alloys. Two issues are addressed: 1) the different rates at which Nb and V (same number of valence electrons) suppress the cobalt moment and 2) the combined effect of boron and niobium together in suppressing the cobalt moment. It is suggested that the characteristic moment variations can be accounted for by d-d hybridization in the first case and by p-d and d-d hybridization in the second case. © 1983.