摘要: In recent years, the rare earth-cobalt compounds with a formula of RCo 3 (R=rare earth) have received much attention due to their complex magnetic properties such as antiferromagnetic, temperature-induced itinerant-electron metamagnetism, magnetocaroric effect, spin reorientation etc[1-3]. However, these phenomena occur in low temperature regime. It's known that binary rare-earth (R) intermetallic crystallise PuNi -type rhombohedral structure (space group R-3m). this lattice, R atoms occupy 3a and 6c sites, while cobalt are distributed on 3b, 18h positions. (except R=Tm Y) Co sublattice is strong ferromagnetic(SFM) ground state. Both Co-Co R-Co exchange interactions influence strongly state sublattice. study, magnetism relationship between earth elements property high been systematically.
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