Abstract
We have calculated the magnetic properties of pure Ni, Co and Rh, and alloyed Co–Rh and Ni–Rh free-standing nanowires by an ab initio method. We have found that the pure Co and Ni wires present an enhanced magnetic moment with respect to their bulk values, and we have obtained that a magnetic order appears for pure Rh wires. For concentrations up to 50%Rh, in the alloyed Ni–Rh linear chains there is an enhancement of the total magnetic moment with respect to the pure nanowires, and in the case of Co–Rh the alloying with Rh enhances the Co magnetic moment. In both systems we obtain very high Rh magnetic moments.
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