R. Guiradolopez et al., MAGNETIC-NONMAGNETIC TRANSITION IN FCC 4D-TRANSITION-METAL CLUSTERS, Physical review. B, Condensed matter, 57(11), 1998, pp. 6305-6308
Size-dependent, magnetic, and structural properties of fee Rh, and RUN
clusters (N=13, 19, 43, 55, and 79) are calculated using a tight-bind
ing Hubbard Hamiltonian in the unrestricted Hartree-Fock approximation
. Results for the magnetic moment, cohesive energy, and interatomic di
stance at T=0 are given as functions of cluster size. The magnetic-non
magnetic transitions estimated are in agreement with experimental find
ings.