材料期刊网

Density-functional theory (DFT) with generalized gradient approximation (GGA) is applied to study the electronic structure and the magnetic properties of ferromagnet [Cu(mu-C4H2O4)(NH3)(2)](n)(H2O)(m). The density of states, the electronic band structure and the spin magnetic moment are calculated. The calculations reveal that the compound has a stable half-metal-ferromagnetic ground state, and that there exists a dominant ferromagnetic interaction arising from the alkoxo-bridged dimeric part of the compound. The spin magnetic moment 1.0 mu(B) per molecule mainly comes from the Cu ion with little contribution from O, N, C anion.