Unexpected Magnetism of Small Silver Clusters

Details Unexpected Magnetism of Small Silver Clusters Unexpected Magnetism of Small Silver Clusters

2006-05-18

arxiv.org/abs/physics/0605160v1

Phys. Rev. A 75, 063204 (2007)

Physics

Atomic and Molecular Clusters

4 pages, 4 figures

Scientific paper

10.1103/PhysRevA.75.063204

The ground-state electronic, structural, and magnetic properties of small silver clusters, Ag$_n$ (2$\le$n$\le$22), have been studied using a linear combination of atomic Gaussian-type orbitals within the density functional theory. The results show that the silver atoms, which are diamagnetic in bulk environment, can be magnetic when they are grouped together in clusters. The Ag$_{13}$ cluster with icosahedral symmetry has the highest magnetic moment per atom among the studied silver clusters. The cluster symmetry and the reduced coordination number specific of small clusters reveal as a fundamental factor for the onset of the magnetism.

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